Keo, HK, M Umer, T Willenberg, and SB Gretener. “Long-Term Clinical Outcomes in Patients Diagnosed with severe digital ischemia”. Swiss Medical Weekly 141, no. 0708 (February 14, 2011): w13159. Accessed August 16, 2024. https://smw.ch/index.php/smw/article/view/1254.