Perinatal mortality.  I.  The role of premature birth.
D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn / Q000706:statistics & numerical data; D007234:Infant, Premature; D066087:Perinatal Death; D054238:Perinatal Mortality; D011247:Pregnancy; D047928:Premature Birth
INFANT, NEWBORN/statistics; INFANT, PREMATURE