1. London Health Sciences Centre, Victoria Hospital; University of Western Ontario; 800 Commissioners Road East PO BOX 5010 London Ontario Canada
2. University of Edinburgh; Division of Psychiatry; Royal Edinburgh Hospital Edinburgh UK EH10 5HF
3. Annapolis Valley Heath; Kentville Nova Scotia Canada
4. Dalhousie University; Halifax Nova Scotia Canada
5. University of Oxford/Warneford Hospital; Department of Psychiatry; Oxford UK OX3 7JX
6. Imperial College London; Division of Brain Sciences, Centre for Mental Health; London UK W6 8RP