The DANTE trial protocol: a randomised phase III trial to evaluate the Duration of ANti-PD-1 monoclonal antibody Treatment in patients with metastatic mElanoma oleh Oliver Coen, Pippa Corrie, Helen Marshall, Ruth Plummer, Christian Ottensmeier, Jane Hook, Sue Bell, Gurdeep S. Sagoo, David Meads, Janine Bestall, Galina Velikova, Ferdia A. Gallagher, Alexandra Smith, Helen Howard, Ellen Mason, Eszter Katona, Shobha Silva, Michelle Collinson, Simon Rodwell, Sarah Danson