von Segesser, Ludwig, Enrico Ferrari, Piergiorgio Tozzi, Saad Abdel-Sayed, and Denis Berdajs. “Late Removal of Retrievable Caval Filters”. Swiss Medical Weekly 144, no. 4546 (November 2, 2014): w14022. Accessed February 25, 2024. https://smw.ch/index.php/smw/article/view/1937.