Assessment of PD-L1 expression across breast cancer molecular subtypes, in relation to mutation rate, BRCA1-like status, tumor-infiltrating immune cells and survival oleh Marcelo Sobral-Leite, Koen Van de Vijver, Magali Michaut, Rianne van der Linden, Gerrit K.J. Hooijer, Hugo M. Horlings, Tesa M. Severson, Anna Marie Mulligan, Nayana Weerasooriya, Joyce Sanders, Annuska M Glas, Diederik Wehkamp, Lorenza Mittempergher, Kelly Kersten, Ashley Cimino-Mathews, Dennis Peters, Erik Hooijberg, Annegien Broeks, Marc J. van de Vijver, Rene Bernards, Irene L. Andrulis, Marleen Kok, Karin E. de Visser, Marjanka K. Schmidt