P-48 Glutamine for prevention and alleviation of radiation-induced oral mucositis in head and neck squamous cell cancer patients: a systematic review and meta-analysis of controlled trials. (July 2021) - Alsubaie, Hemail M.; Alsini, Albaraa Y.; Alsubaie, Khaled M.; Abu-Zaid, Ahmed; Alzahrani, Faisal R.; Sayed, Suhail I.; Pathak, Alok K.; Al-Qahtani, Khalid H.