1. The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, and University of Toronto, Toronto, Ontario, Canada (C.K.)
2. The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong (E.L., R.C.M., W.S., A.P.K., E.C., W.G., J.C.C., A.L.)
3. University of Toronto, Institute for Clinical Evaluative Sciences, and Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada (B.R.S.)
4. University of Toronto and Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada (T.A.S.)
5. University of Melbourne, Melbourne, Victoria, Australia (P.C.)