Vemurafenib plus cobimetinib in unresectable stage IIIc or stage IV melanoma: response monitoring and resistance prediction with positron emission tomography and tumor characterist... oleh Bernies van der Hiel, John B.A.G. Haanen, Marcel P.M. Stokkel, Daniel S. Peeper, Connie R. Jimenez, Jos H. Beijnen, Bart A. van de Wiel, Ronald Boellaard, Alfons J.M. van den Eertwegh, REPOSIT study group