[NEED FOR A 5TH GROUP IN THE WEIGHT CLASSIFICATION OF PREMATURE INFANTS].
D001835:Body Weight; D001837:Body Weights and Measures; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature
BODY WEIGHT; INFANT, NEWBORN; INFANT, PREMATURE
NECESIDAD DE UN QUINTO GRUPO EN LA CLASIFICACION PONDERAL DEL PREMATURO.