[1] CLARKE INST PSYCHIAT,BIPOLAR DISORDERS CLIN,TORONTO,ON M5T 1R8,CANADA
[2] RUHR UNIV BOCHUM,WESTFAL ZENTRUM PSYCHIAT,W-4630 BOCHUM,GERMANY
[3] UNIV TORONTO,CLARKE INST PSYCHIAT,DEPT PSYCHIAT,TORONTO,ON,CANADA
[4] CLARKE INST PSYCHIAT,MOOD & ANXIETY UNIT,TORONTO,ON,CANADA
[5] UNIV WESTERN ONTARIO,LONDON PSYCHIAT HOSP,DEPT PSYCHIAT,LONDON,ENGLAND