List of participants

Director General of Health Services of the Ministry of Public Health and Social Welfare of

‘Epidemiologist, General Directorate of Coordinated State Public Health Services, Ministry of Health and Welfare, Mexico City, Mexico.. states of Arizona and

Associate Director, Office of International Health Department of Health, Education and Welfare.

Director, Office of International Health Department of Health, Education and Welfare Washington,

Director, Office of International Health Department of Health, Education and Welfare Washington,

Health Services and Mental Health Administration Department of Health, Education, and Welfare Public Health Service. Rockville,

Health Services and Mental Health Administration Department of Health, Education, and Welfare Public Health Service. Rockville,

Acting Assistant Secretary for Health and Scientific Affairs Department of Health, Education,. and Welfare Washington,