Kadek Ayu Erika1, - and Mulhaeriah Mulhaeriah1, - and Upik Anderiani Miskad2, - and Eli Zuraida3, - and Harun Achmad4, - Effectiveness of Oral Cryotherapy for Oral Mucositis on Cancer Patient Undergoing Cancer Therapy: A Systematic Review. Journal of Medical Sciences. 2021.