Case report: Selpercatinib in the treatment of RET fusion-positive advanced lung adenocarcinoma: a challenging clinical case - Pagliaro, Raffaella; Medusa, Paola Maria; Vitiello, Fabiana; Aronne, Luigi; Campbell, Susan F. M.; Perrotta, Fabio; Bianco, Andrea (Frontiers in Oncology, 2025)