[1] ST MICHAELS HOSP,DEPT PSYCHIAT,30 BOND ST 4M,TORONTO M5B 1W8,ONTARIO,CANADA
[2] UNIV TORONTO,TORONTO M5S 1A1,ONTARIO,CANADA
[3] ROYAL VICTORIA HOSP,DEPT INTERNAL MED,DIV CLIN CHEM,MONTREAL H3A 1A1,QUEBEC,CANADA
[4] MCGILL UNIV,MONTREAL H3A 2T5,QUEBEC,CANADA