Differential mortality among the sexes in childhood and its possible significance in human evolution.
D005075:Biological Evolution; D006630:Hispanic or Latino; D006801:Humans; D007199:Indians, South American; D007223:Infant; D007226:Infant Mortality; D009026:Mortality; D012723:Sex; D012725:Sexual Behavior; D014481:United States
INDIANS, SOUTH AMERICAN; INFANT MORTALITY; MORTALITY