Frequency of pathogenic germline variants in BRCA1, BRCA2, PALB2, CHEK2 and TP53 in ductal carcinoma in situ diagnosed in women under the age of 50 years oleh Christos Petridis, Iteeka Arora, Vandna Shah, Anargyros Megalios, Charlotte Moss, Anca Mera, Angela Clifford, Cheryl Gillett, Sarah E. Pinder, Ian Tomlinson, Rebecca Roylance, Michael A. Simpson, Elinor J. Sawyer