Dr. Patel is with the Intensive Ambulatory Care Service, Montreal Children's Hospital and the McGill University Health Centre, Montreal, Que. Dr. John W. Feightner, Professor, Department of Family Medicine, University of Western Ontario, London, Ont. Dr. Richard Goldbloom, Professor, Department of Pediatrics, Dalhousie University, Halifax, NS. Drs. R. Wayne Elford, Professor and Chair of Research, Department of Family Medicine, University of Calgary, Calgary, Alta.; Michel Labrecque, Professor, Unité de médecine familiale, Université Laval, Rimouski, Que.; Robin McLeod, Professor, Department of Surgery, Mount Sinai Hospital and University of Toronto, Toronto, Ont.; Harriet MacMillan, Associate Professor, Departments of Psychiatry and Behavioural Neurosciences and of Pediatrics, Canadian Centre for Studies of Children at Risk, McMaster University, Hamilton, Ont.; Jean-Marie Moutquin, Professor and Director, Département d'obstétrique-gynécologie, Université de Sherbrooke, Sherbrooke, Que.; Christopher Patterson, Professor and Head, Division of Geriatric Medicine, Department of Medicine, McMaster University, Hamilton, Ont.; and Elaine E.L. Wang, Associate Professor, Departments of Pediatrics and Public Health Sciences, Faculty of Medicine, University of Toronto, Toronto, Ont. Ms. Nadine Wathen, Coordinator, and Mr. Tim Pauley, Research Assistant, Canadian Task Force on Preventive Health Care, Department of Family Medicine, University of Western Ontario, London, Ont.