J. Dorgan

Perinatal data reliability in a large teaching obstetric unit

J. Villar, E. Kestler, R. Menendez, 1988, British journal of obstetrics and gynaecology.

Epidemiologic identification of infants with low birth weight in urban areas of Latin America: I. Organization, population, and methodology of the Guatemalan perinatal study.

J. Villar, R. Sibrián, E. Kestler, 1987, Bulletin of the Pan American Health Organization.