Prognostic factors in the primary care of patients with Merkel cell carcinoma: A monocentric cohort study of 108 patients from a tertiary referral centre oleh Jan‐Malte Placke, Maximilian Zahn, Hannah Zillikens, Frederik Krefting, Georg C. Lodde, Lisa Zimmer, Elisabeth Livingstone, Eva Hadaschik, Antje Sucker, Alexander Roesch, Alpaslan Tasdogan, Nalini K. Srinivas, Dirk Schadendorf, Jürgen C. Becker, Selma Ugurel