Health interview surveys for child survival programs. A review of methods, ins-
614 .T769h
The Johns Hopkins University. E.U.A.
Health interview surveys for child survival programs. A review of methods, ins- . -- Baltimore: School of Hygiene and Public Healt-, 1989. 51 p., 23 cm.
027518
Niños - Cuidados e higiene.
Niños - Enfermedades