Reproductive and menstrual characteristics of mothers of multiple births and mothers of singletons only: a discriminant analysis.
D000328:Adult; D001835:Body Weight; D005260:Female; D006801:Humans; D008423:Maternal Age; D008572:Menarche; D008598:Menstruation; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012098:Reproduction; D012744:Sex Ratio; D013997:Time Factors; D014429:Twins, Dizygotic