1. Department of Orthopaedics, Dartmouth
Hitchcock Medical Center, Lebanon, New
Hampshire, USA.
2. Department of Epidemiology, and Program
in Quantitative Biomedical Sciences, Dartmouth Geisel School of
Medicine, Hanover, New
Hampshire, USA.
3. Dartmouth Hitchcock Medical Center, Lebanon, New
Hampshire, USA and The Dartmouth Institute, Dartmouth
Geisel School of Medicine, Hanover, New
Hampshire, USA.
4. Division of Orthopaedic Surgery, Department
of Surgery, and Department of Health Research Methods, Evidence
and Impact (HEI), McMaster University, Hamilton, Canada.
5. Department of Orthopedic Surgery, Greenville
Health System, Greenville, SC, USA.
6. Division of Orthopaedic Surgery, Department
of Surgery, McMaster University, Hamilton, Ontario, Canada.
7. Department of Orthopaedic Surgery, University
of Minnesota, Minneapolis, Minnesota, USA.
8. Division of Orthopaedic Surgery, Department
of Surgery, and Department of Health Research Methods, Evidence
and Impact (HEI), McMaster University, Hamilton, Ontario, Canada.
9. Department of Orthopaedics, University
of Maryland School of Medicine, Baltimore, Maryland, USA.