Safety and efficacy of photobiomodulation therapy in oncology: A systematic review oleh René‐Jean Bensadoun, Joel B. Epstein, Raj G. Nair, Andrei Barasch, Judith E. Raber‐Durlacher, Cesar Migliorati, Marie‐Thérèse Genot‐Klastersky, Nathaniel Treister, Praveen Arany, Joy Lodewijckx, Jolien Robijns, the World Association for Laser Therapy (WALT)