Author Murray Krahn, M.D., M.Sc. Assistant Professor Departments of Medicine and Clinical Biochemistry University of Toronto Toronto, Ontario Robert S. Lawrence, M.D.† Director, Health Sciences The Rockefeller Foundation New York, New York, U.S. Donald W. Lewis, D.D.S., D.D.P.H., M.Sc.D., F.R.C.D.C. Professor of Community Dentistry Faculty of Dentistry University of Toronto Toronto, Ontario Ellen L. Lipman, M.D., F.R.C.P.C. Assistant Professor Department of Psychiatry McMaster University Hamilton, Ontario Alexander G. Logan, M.D., F.R.C.P.C.‡ Professor of Medicine Department of Medicine University of Toronto Toronto, Ontario
Auteur J. Kenneth Johnson, M.D. Au moment de la r´ daction : e Agr´ g´ de recherche e e D´ partement de m´ decine pr´ ventive et e e e de biostatistique Universit´ de Toronto e Toronto (Ontario) Douglas B. Kamerow, M.D., M.P.H. Directeur, Clinical Preventive Services Staff Office of Disease Prevention and Health Promotion Professeur agr´ g´ de clinique e e Department of Community and Family Medicine Georgetown University ´ Washington, D.C., E.-U. Murray Krahn, M.D., M.Sc. Professeur adjoint D´ partements de M´ decine et de e e biochimie clinique Universit´ de Toronto e Toronto (Ontario) Robert S. Lawrence, M.D.† Directeur, Health Sciences The Rockefeller Foundation ´ New York, NY, E.-U. Donald W. Lewis, D.D.S., D.D.P.H., M.Sc.D., F.R.C.D.C. Professeur de dentisterie communautaire Facult´ de dentisterie e Universit´ de Toronto e Toronto (Ontario)