I am writing to give strong support to Wilson's editorial in the April 1995 issue of the Archives, titled "Assumptions, Prevention, and the Need for Research."1 Dr Wilson elegantly articulated the importance of good research into disease prevention and health promotion. All pediatricians are clearly interested in, and involved with, those important activities whether engaged in private practice or in academic centers. The idea of preventing illness and of identifying asymptomatic individuals before illness becomes burdensome makes such good common sense that there have been very few well-designed and well-executed studies to show which of these activities do work and which ones do not.
For those who are interested in this topic, the Canadian Task Force on the Periodic Health Examination in its new book, The Canadian Guide to Clinical Preventive Health Care,2 devotes more than 300 pages to preventive health care for children. The process that the