title: Twinning, cancer, and genetics.
authors.forename: R
authors.initials: R
authors.lastname: Levy
mesh_terms: D001943:Breast Neoplasms / Q000209:etiology* / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D013736:Testicular Neoplasms / Q000209:etiology* / Q000235:genetics; D014429:Twins, Dizygotic / Q000235:genetics*; D014430:Twins, Monozygotic / Q000235:genetics