title: Histologically proved basal cell carcinomas in identical twins.
mesh_terms: D000368:Aged; D001415:Back; D002280:Basal Cell Carcinoma / Q000235:genetics*; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D011247:Pregnancy; D012878:Skin Neoplasms / Q000235:genetics*; D014430:Twins, Monozygotic