1. Department of Medicine, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
2. Department of Medicine, Weill Cornell Medical College, 1600 York Avenue, New York, NY 10021, USA
3. Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
4. Department of Orthopaedic Surgery, Weill Cornell Medical College, 1600 York Avenue, New York, NY 10021, USA
5. Department of Social Work, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA