title: Double primaries.
mesh_terms: D001943:Breast Neoplasms; D001984:Bronchial Neoplasms; D005260:Female; D005770:Gastrointestinal Neoplasms; D006801:Humans; D009378:Neoplasms, Multiple Primary; D001749:Urinary Bladder Neoplasms; D014594:Uterine Neoplasms