1 The Division of Plastic and Reconstructive Surgery, Department of Surgery, McMaster University, and the Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ont.
2 The Division of Plastic and Reconstructive Surgery, Department of Surgery, McMaster University, and the Surgical Outcomes Research Centre (SOURCE), McMaster University, Hamilton, Ont.
3 The †Department of Clinical Epidemiology and Biostatistics, McMaster University, the Surgical Outcomes Research Centre (SOURCE), McMaster University, Hamilton, Ont., and the Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada and Arthritis Research Centre of Canada, Richmond, BC.
4 The Division of Plastic and Reconstructive Surgery, Department of Surgery, McMaster University, Hamilton, Ont., and the Surgical Outcomes Research Centre (SOURCE), McMaster University, Hamilton, Ont.
5 The Division of Plastic and Reconstructive Surgery, Department of Surgery, McMaster University, the Department of Clinical Epidemiology and Biostatistics, and the Surgical Outcomes Research Centre (SOURCE), McMaster University, Hamilton, Ont.