Proportional weight loss in six months as a risk factor for mortality in stage IV non-small cell lung cancer oleh Guilherme Watte, Claudia Helena de Abreu Nunes, Luzielio Alves Sidney-Filho, Matheus Zanon, Stephan Philip Leonhardt Altmayer, Gabriel Sartori Pacini, Marcelo Barros, Ana Luiza Schneider Moreira, Rafael José Vargas Alves, Alice de Medeiros Zelmanowicz, Bashir Mnene Matata, Jose da Silva Moreira