[Simple screening to establish twin pregnancy].
D005260:Female; D006801:Humans; D010928:Placental Lactogen / Q000097:blood*; D011247:Pregnancy; D011259:Pregnancy Tests, Immunologic; D011263:Pregnancy Trimester, Third; D011272:Pregnancy, Multiple; D014427:Twins
D010928:Placental Lactogen
Enkel screening för fastställande av tvillinggraviditet