Epidemiologic identification of infants with low birth weight in urban areas of Latin America: I. Organization, population, and methodology of the Guatemalan perinatal study.
E
E
Kestler
J
J
Dorgan
R
R
Sibrián
O
O
Aquino
J
J
Villar
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