orthopedic residency
Orthopedic Residents
Papers & Publications

Papers & Publications

A 16-year-old Male with Multifocal, Painless Osseous Lesions.
Dean E, Villalobos C, Garcia R, Wittig JC.
Clin Orthop Relat Res. 2012 Apr 28.
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Painful Femur Lesion in a 43-year-old Woman
Epelboyn Y, Desai K, Garcia R, Wittig JC.
Clin Ortho Rel Res. Clin Orthop Relat Res. 2012 Jul;470(7):2067-72. Epub 2012 May 12
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Primary synovial chondrosarcoma of the hip joint in a 45-year-old male: case report and literature review.
Rybak LD, Khaldi L, Wittig J, Steiner GC.
Skeletal Radiol. 2011 Oct;40(10):1375-81
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Anesthesia for Patients Undergoing Orthopedic Oncologic Surgeries
Anderson MR, Jeng CL, Wittig JC, Rosenblatt MA.
J Clin Anesth. 2010 Nov;22(7):565-72.
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Thermal Ablation of Spinal Osteoid Osteomas Close to Neural Elements: Technical Considerations.
Rybak LD, Gangi A, Buy A, La Rocca Viera, Wittig JC.
AJR 2010; 195:293-298
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Clear Cell Sarcoma of The Soft Tissue Localized in The Elbow. Case Report.
Smilowitz N, Villalobos CE, Rybak LD, Wittig JC.
Curr Ortho Prac. January/February 2011 - Volume 22 - Issue 1 - p 104–108.

Orthopaedic Case of the Month: A 30-year-old Woman with a Painful Forearm Mass
Hochfelder J, Rybak LD, Garcia R, Wittig JC.
Clin Orthop Relat Res. 2010 Nov;468(11):3139-44
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Chest Wall Mass in a 50-year-old Woman

Chatha DS, Rybak LD, Wittig JC, Desai P.
Clin Orthop Relat Res. 2010 May;468(5):1462-6
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Osteoblastoma of the Sternum. Case Report. Review of the literature.
Villalobos CE, Rybak LD, Steiner G C, Wittig JC.
Bull NYU Hosp JT Dis. 2010;68(1):55-9
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A case report: Synovial sarcoma of the thoracic spine
Koehler SM, Beasley MB, Chin CS, Wittig JC, Hecht AC, Quershi SA.
Spine J. 2009 Dec;9(12):e1-6.Epub 2009 Oct 2009
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Limb-Sparing Resection of the Scapula and Reconstruction with a Constrained Total Scapula Prosthesis: A Case of Multicentric Epithelioid Hemangioendothelioma Involving the Scapula and Surrounding Soft Tissues. 
Villalobos CE, Hayden BL, Silverman A, Choi I, Wittig JC.
Ann Surg Oncol. 2009 Jun 6. 
Department of Orthopedic/Oncology, Mount Sinai Medical Center, New York, NY, USA.
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Chondroblastoma: radiofrequency ablation--alternative to surgical resection in selected cases.
Rybak LD, Rosenthal DI, Wittig JC.
Radiology. 2009 May;251(2):599-604. Epub 2009 Mar 20. Links
Department of Radiology, New York University Hospital for Joint Diseases, 301 E 17th St, 6th Floor, New York, NY 10003-3899, USA. Leon.rybak@med.nyu.edu
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Orthopaedic . Radiology . Pathology Conference:
Painful Distal Femur Lesion in a 13-year-old Girl.
Harsha A, Villalobos CE, Rybak LD, Borys D, Wittig JC.
Clin Orthop Relat Res. 2008 Sep 18. [Epub ahead of print] Links
New York University School of Medicine, New York, NY, USA.
Clinical Orthopaedics and Related Research: Volume 467,
Issue8 (2009), Page 2200.
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Primary leiomyosarcoma of the proximal tibia: case report and review of the literature.
Kitay A, Rybak L, Desai P, Villalobos CE, Wittig JC.
Bull NYU Hosp Jt Dis. 2008;66(1):49-53.Links
New York University of Medicine, New York, New York, USA.
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IFI16 inhibits tumorigenicity and cell proliferation of bone and cartilage tumor cells.
Zhang Y, Howell RD, Alfonso DT, Yu J, Kong L, Wittig JC, Liu CJ.
Front Biosci. 2007 Sep 1;12:4855-63. Links
Department of Orthopaedic Surgery, New York University School of Medicine, New York, New York 10003, USA.
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Painful tibial lesion in a 16-year-old girl.
Chatha DS, Rybak LD, Wittig JC, Desai P.
Department of Radiology, New York University, Hospital for Joint Diseases, New
Clin Orthop Relat Res. 2007 Nov;464:247-52.Links
York, NY 10003, USA. cathad01@popmail.med.nyu.edu
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Orthopaedic-radiology-pathology conference:
Elbow mass in a 9-year-old girl.
Chatha DS, Rybak LD, Wittig JC, Desai P.
Clin Orthop Relat Res. 2007 Oct;463:237-43.Links
Department of Radiology, New York University, Hospital for Joint Diseases, 301 East 17th Street, New York, NY 10003, USA. cathad01@popmail.med.nyu.edu
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Vacuum-assisted wound closure after resection of musculoskeletal tumors.
Bickels J, Kollender Y, Wittig JC, Cohen N, Meller I, Malawer MM.
Clin Orthop Relat Res. 2005 Dec;441:346-50.Links
National Unit of Orthopedic Oncology and Department of Oncology, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel. jbickels@012.net.il
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Function after resection of humeral metastases: analysis of 59 consecutive patients.
Bickels J, Kollender Y, Wittig JC, Meller I, Malawer MM.
Clin Orthop Relat Res. 2005 Aug;(437):201-8.Links
The National Unit of Orthopedic Oncology, Tel-Aviv Sourasky Medical Center, Tel-Aviv University, Israel. jbickels@012.net.il
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Pseudopathologic fracture of the neck of the femur.
A case report.
Keschner MT, Bong MR, Wittig JC, Tejwani N.
J Bone Joint Surg Am. 2004 Jul;86-A(7):1534-7. Links
New York University-Hospital for Joint Diseases, 301 East 17th Street, 14th Floor, New York, NY 10003, USA. mkesch@aol.com
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Disorders of the Shoulder: Diagnosis and Management
Editors: Joseph Ianotti, MD and Gerald Williams, MD; Chapter 37 co-written by Martin Malawar, MD, James C. Wittig, MD, Kristen Kellar Graney, MD
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Complex reconstruction in the management of extremity sarcomas
Current Opinion in Oncology, 2003, 15:304-312
Wodajo F, Bickels J, Wittig JC, Malawer MM
The concept of limb-sparing surgery for bony sarcomas has evolved over the past 25 years. Today, more than 90% of patients treated by surgeons with expertise in musculoskeletal oncology undergo successful limb-sparing procedures.
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Constrained total scapula reconstruction after resection of a high-grade sarcoma
Clin Orthop. 2002, Number 397, pp. 143-155
Wittig J, Bickels J, Wodajo FM, Kellar-Graney K, Malawer MM
Patients with high-grade sarcomas arising from the scapula or periscapular soft tissues traditionally have been treated with either a total scapulectomy or a wide, en bloc, extraarticular scapular resection, termed the Tikhoff-Linberg resection. The major challenge after such resections is to restore shoulder girdle stability while preserving a functional hand and elbow.
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Distal femur resection with endoprosthetic reconstruction: A long-term followup study
Clin Orthop. 2002 Jul; (400): 225-35
Bickels J, Wittig JC, Kollender Y, Henshaw RM, Kellar-Graney KL, Meller I, Malawer MM
The distal femur is a common site for primary and metastatic bone tumors and therefore, it is a frequent site in which limb-sparing surgery is done. Between 1980 and 1998, the authors treated 110 consecutive patients who had distal femur resection and endoprosthetic reconstruction.
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Enchondromas of the hand: Treatment with curettage and cemented internal fixation
J Hand Surg [Am]. 2002 Sep; 27(5): 870-5
Bickels J, Wittig JC, Kollender Y, Kellar-Graney K, Mansour KL, Meller I, Malawer MM
Removal by means of curettage is the mainstay of surgical treatment of enchondromas of the hand. Reconstruction traditionally entails filling the tumor cavity with a bone graft, or it may be decided not to perform a reconstruction. In either case a period of protected activity is needed until the tumor cavity has healed.
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Giant cell tumor of the hand: Superior results with curettage, cryosurgery, and cementation
J Hand Surg [Am] 2001 May; 26(3):546-55
Wittig JC, Simpson BM, Bickels J, Kellar-Graney KL, Malawer MM
At our institution giant cell tumors arising in all locations are treated with curettage, cryosurgery, and cementation to avoid resection or amputation, increase local tumor control over curettage alone, and avoid the morbidity associated with immobilization. We report the oncologic and functional results of 3 patients with giant cell tumors arising from the tubular bones of the hand who were treated in this manner.
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Limb-sparing resections of the shoulder girdle: A long-term follow-up study
J Am Coll Surg. 2002 Apr; 194(4): 422-35
Bickels J, Wittig JC, Kollender Y, Kellar-Graney K, Meller I, Malawer MM
BACKGROUND: Limb-sparing surgeries around the shoulder girdle pose a surgical difficulty, because tumors arising in this location are frequently large at presentation, are juxtaposed to the neurovascular bundle, require en bloc resection of proportionally large amounts of bone and soft tissues, and necessitate complex resection and reconstruction.
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Limb-sparing surgery for high-grade sarcomas of the proximal humerus
Techniques in Shoulder and Elbow Surgery Vol. 2 No.1 2001 pp: 54-69
Wittig JC, Kellar-Graney KL, Malawer MM, Bickels J, Meller I.
Article not avalible for download.

Osteosarcoma of the proximal humerus: long-term results with limb-sparing surgery
Clin Orthop. 2002 Apr; (397): 156-76
Wittig JC, Bickels J, Kellar-Graney KL, Kim FH, Malawer MM
The purpose of the current study was to analyze the long-term oncologic and functional results and complications associated with limb-sparing surgery and endoprosthetic reconstruction for 23 patients with osteosarcoma of the proximal humerus.
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Techniques in Shoulder & Elbow Surgery

Osteosarcoma: a multidisciplinary approach to diagnosis and treatment
Am Fam Physician. 2002 Mar 15; 65(6): 1123-32
Wittig JC, Bickels J, Priebat D, Jelinek J, Kellar-Graney K, Shmookler B, Malawer MM
Article not available for download.

Palliative forequarter amputation for metastatic carcinoma to the shoulder girdle region: Indications, preoperative evaluation, surgical technique, and results.
J Surg Oncol 2001 Jun;77(2):105-13
Wittig JC, Bickels J, Kollender Y, Kellar-Graney KL, Meller I, Malawer MM
BACKGROUND AND OBJECTIVES: Uncontrolled metastatic carcinoma of the shoulder girdle is a difficult oncologic problem. This study reviews our experience with palliative forequarter amputation with emphasis on patient selection criteria, preoperative radiologic assessment, surgical technique, epineural postoperative analgesia, and clinical outcome.
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Reconstruction of the extensor mechanism after proximal tibia endoprosthetic replacement
J Arthroplasty. 2001 Oct; 16(7): 856-62
Bickels J, Wittig JC, Kollender Y, Neff RS, Kellar-Graney K, Meller I, Malawer MM
The proximal tibia is a difficult area in which to perform a wide resection of a bone tumor. This difficulty is due to the intimate relationship of tumor in this location to the nerves and blood vessels of the leg, inadequate soft tissue coverage after endoprosthetic reconstruction, and the need to reconstruct the extensor mechanism.
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Sciatic nerve resection: Is that truly an indication for amputation?
Clin Orthop. 2002 Jun; (399): 201-4
Bickels J, Wittig JC, Kollender Y, Kellar-Graney K, Malawer MM, Meller I
En bloc resection of the sciatic nerve with an adjacent bone or soft tissue tumor has been assumed to be associated with a poor functional outcome and, therefore, was considered an indication for amputation.
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Utilitarian shoulder approach for malignant tumor resection
Orthopedics. 2002 May; 25(5): 479-84
Wittig JC, Bickels J, Wodajo F, Kellar-Graney KL, Meller I, Malawer MM
Malignant tumors involving the shoulder girdle can arise from four distinct locations: the proximal humerus, scapula, periscapular muscles, and axillary structures. This article describes a utilitarian shoulder approach that can be used to resect these tumors.
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Videos - Poster


Extensile Axillary Approach for Schwannoma of the Brachial Plexus.
Vap AR, Hayden BL, Villalobos CE, Silverman A, Malawer MM, Wittig JC
Presented at the 76th Annual Meeting of the AAOS; Feb 25-28, 2009, Las Vegas NV.

Recurrent Giant Cell Tumor of the Distal Humerus Treated with a Limb-Sparing Resection and Prosthetic Reconstruction
Wittig JC, Villalobos CE, Hayden B, Silverman A, Azam I, Choi I
Accepted for the 64th Annual Meeting of the American Society for Surgery of the Hand;
Sept 3-5, 2009. San Francisco, CA

The Extensile Surgical Approach for the Resection of a Large Tumor of the Axilla and the Brachial Plexus
Vap AR, Hayden BL, Villalobos CE, Silverman A, Malawer MM, Wittig JC.
Accepted for the 64th Annual Meeting of the American Society for Surgery of the Hand;
Sept 3-5, 2009. San Francisco, CA

Chrondosarcoma of the Scapula Treated with a Limb-Sparing Resection and Total Scapula Prosthetic Reconstruction
Bronson W, Hayden B, Villalobos CE, Wittig JC, Malawer MM
Accepted for the 64th Annual Meeting of the American Society for Surgery of the Hand;
Sept 3-5, 2009, San Francisco, CA

Osteosarcoma of the Proximal Humerus Treated with a Limb-Sparing Resection and Prosthetic Reconstruction
Wittig JC, Villalobos CE, Hayden B, Silverman A
Accepted for the 64th Annual Meeting of the American Society for Surgery of the Hand;
Sept 3-5, 2009. San Francisco, CA 

Radical Resection of the Scapula for Large Chondrosarcoma and Reconstruction with a Constrained Total Scapula Prosthesis
Wittig JC, Bronson W, Villalobos CE, Hayden BL, Malawer M  
Accepted for the 95th Annual Clinical Congress of the American College of Surgeons; October 11-15, 2009, Chicago, IL

Ewing's Sarcoma of the Scapula Limb Sparing Resection of the Scapula and Reconstruction with a Pediatric Total Scapula Tumor Prosthesis
Hayden BL, Villalobos CE, Silverman AM, Choi I, Malawer MM, Wittig JC
Accepted for the 77th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
March 9-14, 2010, New Orleans, LA

Ewing’s Sarcoma of the Scapula Limb-Sparing Resection of the Scapula Resection of the Scapula and Reconstruction with a Total Scapula Tumor Prosthesis
Hayden BL, Villalobos CE, Choi I, Malawer MM, Wittig, JC
Accepted for the 77th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
March 9-13, 2010, New Orleans, LA

Radical Resection of the Scapula for a Large Chondrosarcoma Reconstruction of the Shoulder Girdle with a Constrained Total Scapula Prosthesis
Bronson W, Hayden BL, Villalobos CE, Choi I, Malawer MM, Wittig JC
Accepted for the 77th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
March 9-13,  2010, New Orleans, LA

Osteosarcoma of Distal Femur with Skip Metastasis to Proximal Femur: Total Femur Resection with Prosthesis Reconstruction
Hayden BL, Villalobos CE, Silverman AM, Choi I, Malawer MM, Wittig JC
Accepted for the 77th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
March 9-3,  2010, New Orleans, LA

Intra-articular Resection and Reconstruction with Modular Segmental Proximal Humerus Prosthesis for a Pathologic Fracture
Silverman A, Villalobos CE, Hayden B, Wittig JC
Accepted for the 65th Annual Meeting of The American Society for Surgery of The Hand; 
October 7-9, 2010, Boston, MA

Proximal Tibia Sarcoma: Limb-Sparing Resection, Prosthetic Reconstruction and Rotation of the Gastrocnemius Muscle
Wittig JC, Villalobos CE, Hayden BL, Silverman AD, Choi I, Malawer MM 
Accepted for the 96th Annual Clinical Congress of  the American College of Surgeons; 
October 3-7, 2010, Washington, DC

Radiofrequency Ablation of an Osteoid Osteoma of Calcaneus Bone
Wittig JC, Villalobos CE, Desai, K , Rybak LD
Accepted for the 96th Annual Clinical Congress of the American College of Surgeons, 
October 3-7, 2010,  Washington, DC

Sacrococcygeal Chordoma: Intralesional Resection and Cryosurgery 
Wittig JC, Villalobos CE
Accepted for the 96th Annual Clinical Congress of the American College of Surgeons; 
October 3-7, 2010, Washington, DC

Osteosarcoma of Distal Femur: Limb-Sparing Resection and Prosthetic Reconstruction
Wittig JC, Villalobos CE, Hayden BL, Silverman A, Choi I, Malawer MM
Accepted for the 96th Annual Clinical Congress of the American College of Surgeons; 
October 3-7, 2010, Washington, DC 

Chondrosarcoma of Proximal Femur: Limb-Sparing Resection and Prosthetic Reconstruction
Wittig JC, Silverman A, Villalobos CE, Hayden BL
Accepted for the 96th Annual Clinical Congress of the American College of Surgeons; 
October 3-7, 2010, Washington, DC 

Extensive Squamous Cell Carcinoma of the Shoulder Girdle: Limb-sparing Total Scapula and Proximal Humerus (Tikhoff-Linberg Type) Resection with Prosthetic and Soft Tissue Reconstruction
Wittig JC, Hayden BL, Villalobos CE, Silverman A, Malawer MM 
Accepted for the 96th Annual Clinical Congress of the American College of Surgeons; 
October 3-7, 2010, Washington, DC

Limb-Sparing Total Scapula and Proximal Humerus (Tikhoff-Linberg Type) Resection with Prosthetic and Soft Tissue Reconstruction
Hayden B, Villalobos CE, Silverman A, Malawer M, Wittig JC
Accepted for the 65th Annual Meeting of The American Society for Surgery of The Hand; 
October 7-9, 2010, Boston, MA

Revision Arthroplasty with Use of a Total Femoral Replacement
Moucha CS, Greendyk RA, Lerner BA, Silverman AM, Hayden BL, Villalobos CE, Wittig JC
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA.

Radical Sacrectomy and Reconstruction for a High Grade Primary Sarcoma of the Sacrum
Wittig JC, Lerner BA, Greendyk R, Villalobos CE, Hayden BL, Silverman AM
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA
Accepted for Video presentation

Intermuscular Liposarcoma of the Posterior Thigh: Radical Resection and Sciatic Nerve Preservation
Wittig JC, Lerner BA, Greendyk RA, Villalobos CE, Silverman AM, Hayden BA
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA

Chondrosarcoma of the Proximal Femur: Limb-Sparing Resection and Prosthetic Reconstruction 
Wittig JC, Silverman AM, Villalobos CE, Hayden BL, Lerner BA 
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA

Intraarticular Proximal Humerus Resection and Prosthetic Reconstruction for Pathologic  Fracture
Wittig JC, Silverman AM, Villalobos CE, Lerner BA, Hayden BL 
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA

Radical  Resection of the Distal Humerus and Reconstruction with a Distal Humerus Tumor Prosthesis
Wittig JC, Villalobos CE, Hayden BL, Silverman AM, Lerner BA
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons;  
February 15-19,  2011, San Diego, CA

Primary MFH of Proximal Tibia: Limb-Sparing Resection with Prosthetic and Soft Tissue Reconstruction
Wittig JC, Villalobos CE, Hayden BL, Silverman AM, Lerner BA, Malawer MM
Accepted for the78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA

Osteosarcoma of the Distal Femur: Radical Resection and Reconstruction with Distal Femur Tumor Prosthesis
Wittig JC, Villalobos CE, Silverman AM, Hayden BL, Lerner BA, Malawer MM
Accepted for the 78th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 15-19,  2011, San Diego, CA 

Low Grade Chondrosarcoma of the Scapula: Limb-Sparing Partial Resection and Reconstruction
Wittig JC, Villalobos CE, Silverman AM, Hayden BL
Accepted for the 79th Annual Meeting of the American Academy of Orthopaedic  Surgeons; 
February 7-11, 2012, San Francisco, CA

Giant Cell Tumor of Proximal Tibia: Curettage, Cryosurgery, and Fixation with Rush Rods
Wittig JC, Villalobos CE, Silverman AM, Hayden BL
Accepted for the 79th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 7-11, 2012, San Francisco, CA

Intraarticular Proximal Humerus Resection for  Parosteal Osteosarcoma
Ho Y, Villalobos CE, Wittig JC
Accepted for the 79th Annual Meeting of the American Academy of Orthopaedic Surgeons; 
February 7-11, 2012,  San Francisco, CA
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