Epidemiologic identification of infants with low birth weight in urban areas of Latin America: I. Organization, population, and methodology of the Guatemalan perinatal study.
Kestler
E
E
Dorgan
J
J
Sibrián
R
R
Aquino
O
O
Villar
J
J
D004812:Epidemiologic Methods; D005260:Female; D006166:Guatemala; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011247:Pregnancy; D011446:Prospective Studies; D014505:Urban Population