2-cm versus 4-cm surgical excision margin for thick (>2 mm) primary malignant melanoma: long-term follow-up of a multicenter randomized trial. Issue 2 (February 2020) - Teras, Jüri; Utjés, Deborah; Malmstedt, Jonas; Drzewiecki, Krzysztof; Gullestad, Hans Petter; Ingvar, Christian; Eriksson, Hanna; Gillgren, Peter