title: Discordance of vaginal agenesis in monozygotic twins.
mesh_terms: D000293:Adolescent; D000328:Adult; D000013:Congenital Abnormalities / Q000235:genetics; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D012728:Sex Chromatin / Q000032:analysis; D014621:Vagina / Q000002:abnormalities* / Q000196:embryology