title: Why twin pregnancies are more successful at advanced than young maternal age? A potential role of 'terminal reproductive investment'.
authors.forename: Samuli
authors.initials: S
authors.lastname: Helle
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011256:Pregnancy Outcome; D011272:Pregnancy, Multiple; D014427:Twins