In 2005 three international multidisciplinary consortia have been initiated: Breast Cancer Association Consortium (BCAC), Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA) and Ovarian Cancer Association Consortium (OCAC) which are forums of investigators from centers over the world, including International Hereditary Cancer Center in Szczecin. Here, BRCA1 is linked to ovarian carcinoma.