Medical Officer, Division of Diarrhoeal & Acute Respiratory Diseases Control, World Health Organization since 1990. Medical Officer, CDD/CDR, World Health Organization, Geneva, 1989. Director, Maternal/ Child Health, Institute of Health, Department of Health, S§o Paulo State, Brazil, 1983-1990.
Rch Fellow, Population & Health, Brazilian Center for Analysis & Planning, 8190. Director, Health Center, Department of Communicable Health, Department of Health, SSo Paulo State, 1977-1983.