Ha, Nam Gyoung, Seon Hwa Lee, Dae-Lyong Ha, Kyung Duck Park, Yong Hyun Jang, Weon Ju Lee, Seok-Jong Lee, and Jun Young Kim. “Controlled Single Freezing Cryotherapy for Mild Facial Actinic Keratosis”. Acta Dermato-Venereologica 103 (April 4, 2023): adv5313. Accessed November 24, 2024. https://medicaljournalssweden.se/actadv/article/view/5313.