title: Female monozygotic twins with selective mutism--a case report.
authors.forename: Nancy L
authors.initials: NL
authors.lastname: Segal
mesh_terms: D002675:Child, Preschool; D005260:Female; D006801:Humans; D009155:Mutism; D010287:Parent-Child Relations; D012919:Social Behavior; D013060:Speech; D014430:Twins, Monozygotic