1. Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York, USA
2. Endocrinology Division, Department of Medicine National University Hospital, Singapore
3. Yong Loo Lin School of Medicine National University of Singapore, Singapore
4. Department of Orthopedic Surgery Memorial Sloan Kettering Cancer Center, New York, New York, USA
5. Orthopedic Oncology Division, Department of Orthopedic Surgery Cooper University Hospital, Camden, New Jersey, USA
6. Weill Cornell Medical College, New York, New York, USA