Clinical and molecular characteristics associated with response to therapeutic PD-1/PD-L1 inhibition in advanced Merkel cell carcinoma ====================================================================================================================================== * Ivelina Spassova * Selma Ugurel * Linda Kubat * Lisa Zimmer * Patrick Terheyden * Annalena Mohr * Hannah Björn Andtback * Lisa Villabona * Ulrike Leiter * Thomas Eigentler * Carmen Loquai * Jessica C Hassel * Thilo Gambichler * Sebastian Haferkamp * Peter Mohr * Claudia Pfoehler * Lucie Heinzerling * Ralf Gutzmer * Jochen S Utikal * Kai Horny * Hans-Ulrich Schildhaus * Daniel Habermann * Daniel Hoffmann * Dirk Schadendorf * Jürgen Christian Becker