Palbociclib in combination with letrozole as first-line therapy for patients with locally advanced, inoperable or metastatic HR+/HER2- breast cancer in Germany: Interim results of the INGE-B phase 2 study. 2. Oktober 2018 Welslau, M., Zaiss, M., Söling, U., Untch, M., Müller, L., Lüftner, D., Meiler, J., Welt, A., Sahlmann, J., Houet, L., Runkel, E., Vannier, C., Marschner, N., 2018. Oncol Res Treat 41 (suppl 4)(P919).