[1] ST MICHAELS HOSP, DEPT PSYCHOL SERV, TORONTO M5B 1W8, ONTARIO, CANADA
[2] SUNNYBROOK MED CTR, DEPT PSYCHIAT, TORONTO M4N 3M5, ONTARIO, CANADA
[3] SUNNYBROOK MED CTR, DEPT FAMILY & COMMUNITY MED, TORONTO M4N 3M5, ONTARIO, CANADA
[4] AIDS COMM TORONTO, TORONTO, ONTARIO, CANADA
[5] DEPT PUBL HLTH, TORONTO, ONTARIO, CANADA