PERINATAL MORTALITY DECREASING.
D001720:Birth Injuries; D005260:Female; D005313:Fetal Death; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D066087:Perinatal Death; D054238:Perinatal Mortality; D011247:Pregnancy; D014481:United States
BIRTH INJURY; FETAL DEATH; INFANT MORTALITY; INFANT, NEWBORN; UNITED STATES