13 Ottini Ottini L L Masala Masala G G D'Amico D'Amico C C Mancini Mancini B B Saieva Saieva C C Aceto Aceto G G BRCA1 and BRCA2 mutation status and tumor characteristics in male breast cancer: a population-based study in Italy BRCA1 and BRCA2 mutation status and tumor characteristics in male breast cancer: a population-based study in Italy Cancer Res Cancer Res 2003 2003 63 63 2 2 342 342 347 347 12543786 12543786. The gene discussed is BRCA1; the disease is neoplasm.