Abstract
Western medicine is expensive and technologically sophisticated; Third World medicine is simpler and cheaper; nuritional medicine is too easily neglected by both of these. All of them have a vital role to play in the future of medical science and practice in an era when the delivery of health care is a political issue as much as a medical one, and when the adverse consequences of progress are liable to return to haunt us. We must learn to co-operate, not to squabble