1. Department of Adult Psychiatry, Midwestern Regional Hospital, Limerick; Milford Care Centre, Castletroy, Limerick
2. Department of Adult Psychiatry, Midwestern Regional Hospital, Limerick
3. Milford Care Centre, Castletroy, Limerick
4. Lilly Research Laboratories, Indianapolis, Indiana; Department of Psychiatry, University of Mississippi Medical School, Jackson, Mississippi; Tufts University School of Medicine, Boston, Massachusetts; Indiana University School of Medicine, Indianapolis, Indiana
5. Statistical Consulting Unit, University of Limerick, Limerick
6. Department of Adult Psychiatry, Midwestern Regional Hospital, Limerick; Milford Care Centre, Castletroy, Limerick; Health Systems Research Centre, University of Limerick, Limerick