Risk of stillbirth in twin pregnancy related to sex and maternal age; an analysis of 90,386 twin maternities.
D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011256:Pregnancy Outcome; D059285:Pregnancy, Twin; D012306:Risk; D050497:Stillbirth; D014427:Twins
STILLBIRTHS; TWINS