An association of Rh type and gynaecological disease with twinning.
D000017:ABO Blood-Group System; D000328:Adult; D001789:Blood Group Antigens; D001787:Blood Group Incompatibility; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000235:genetics*; D008423:Maternal Age; D010048:Ovarian Cysts / Q000235:genetics*; D011247:Pregnancy; D012204:Rh-Hr Blood-Group System; D014427:Twins; D014594:Uterine Neoplasms / Q000235:genetics*
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D012204:Rh-Hr Blood-Group System