Efficacy of photobiomodulation therapy combined with mobile health education in patients with head and neck cancer suffering from chronic xerostomia after radiotherapy: protocol for a three-arm, randomised, placebo-controlled, double-blinded study López Garzón, María de la Cabeza López-Fernández, María Dolores Ruíz-Martínez, Alba Maria Galván-Banqueri, Pilar Lozano Lozano, Mario Tovar-Martín, Isabel Postigo Martín, Elisa Paula Ariza Vega, María Patrocinio Artacho Cordón, Francisco Fernández Lao, Carolina Cantarero Villanueva, Irene Fernández-Gualda, Miguel Ángel Arroyo Morales, Manuel Ruíz-Villaverde, Ricardo Galiano Castillo, Noelia 2025-10-01T12:38:02Z 2025-10-01T12:38:02Z 2024 journal article https://hdl.handle.net/10481/106756 10.1136/bmjopen-2023-078068 eng open access BMJ