Evaluation of two different mutations in codon 12 of NRAS gene in ulcerated penile mucosal nodular malignant melanoma pT4b of the 90-year-old man in perspective of targeted therapy of NRAS-mutated advanced melanomas July 2020 Authors: MD, FEBU Anna Ossolińska, MD, PhD, FEBU Tadeusz Ossolinski, MD, PhD, FEBU Krzysztof Ossoliński, Andrzej Wincewicz Kinga Hińcza Janusz Kopczynski Stanisław Góźdź Artur Kowalik Full link available below: Evaluation of two different mutations in codon 12 of NRAS gene in ulcerated penile mucosal nodular malignant melanoma pT4b of the 90-year-old man in perspective of targeted therapy of NRAS-mutated advanced melanomas