Reduction in severity of radiation-induced dermatitis in head and neck cancer patients treated with topical aloe vera gel: A randomized multicenter double-blind placebo-controlled trial - Tungkasamit, T; Chakrabandhu, S; Samakgarn, V; Kunawongkrit, N; Jirawatwarakul, N; Chumachote, A; Chitapanarux, I (Eur J Oncol Nurs, 2022)