@article{GlutschKneitzGesierichetal.2021,
  author    = {Valerie Glutsch and Hermann Kneitz and Anja Gesierich and Matthias Goebeler and Sebastian Haferkamp and J{\"u}rgen C. Becker and Selma Ugurel and Bastian Schilling},
  title     = {Activity of ipilimumab plus nivolumab in avelumab-refractory Merkel cell carcinoma},
  journal   = {Cancer Immunology, Immunotherapy},
  volume    = {70},
  number    = {7},
  doi       = {10.1007/s00262-020-02832-0},
  year      = {2021},
}