Bollag, L, AZ Linka, and P Dubach. “Symptomatic Mechanical Heart Valve Thrombosis: High Morbidity and Mortality Despite Successful Treatment Options”. Swiss Medical Weekly 131, no. 0910 (March 10, 2001): 109–116. Accessed April 19, 2024. https://smw.ch/index.php/smw/article/view/33.