Commentary: Defining long-term survivors in metastatic lung cancer: insights from a Delphi study in Spain - Benitez-Fuentes, Javier-David; Marin, Pablo Oliva; Mirete, Beatriz Grau; Alhallak, Samer Alhallak; Payá, Paula Rodríguez; Arias, Asia Ferrández (Frontiers in Oncology, 2025)