Prognosis of patients with primary melanoma stage I and II according to American Joint Committee on Cancer version 8 validated in two independent cohorts: implications for adjuvant treatment - Garbe, Claus; Keim, Ulrike; Amaral, Teresa; Berking, Carola; Eigentler, Thomas; Flatz, Lukas; Gesierich, Anja Heike; Leiter-Stöppke, Ulrike; Stadler, Rudolf; Sunderkötter, Cord; Tüting, Thomas; Utikal, Jochen; et al. (Journal of clinical oncology, 2022)