Zink, Alexander, Elisabeth Koch, Florian Seifert, Markus Rotter, Christoph D Spinner, and Tilo Biedermann. “Nonmelanoma Skin Cancer in Mountain Guides: High Prevalence and Lack of Awareness Warrant Development of Evidence-Based Prevention Tools”. Swiss Medical Weekly 146, no. 4950 (December 4, 2016): w14380. Accessed December 4, 2024. https://smw.ch/index.php/smw/article/view/2251.