Caracter'isticas del peso al nacer /
Puffer, Ruth Rice.
Caracter'isticas del peso al nacer / Ruth Rice Puffer, Carlos V. Serrano. - Washington, D.C. : Organizaci'on Panamericana de la Salud, 1988. - 112 p. - Publicaci'on cient'ifica (Organizaci'on Panamericana de la Salud) ; no. 504 .
eng spa.
WHODOC
9275315043
Birth weight--statistics.
Infant mortality.
Infant, Low birth weight--statistics.
Prenatal care--statistics.
WS 420
Caracter'isticas del peso al nacer / Ruth Rice Puffer, Carlos V. Serrano. - Washington, D.C. : Organizaci'on Panamericana de la Salud, 1988. - 112 p. - Publicaci'on cient'ifica (Organizaci'on Panamericana de la Salud) ; no. 504 .
eng spa.
WHODOC
9275315043
Birth weight--statistics.
Infant mortality.
Infant, Low birth weight--statistics.
Prenatal care--statistics.
WS 420