Sapkas, George S, Dimitrios P Stathakopoulos, George C Babis, and John K Tsarouchas. 1998. “Hydatid Disease of Bones and Joints: 8 Cases Followed for 4-16 Years”. Acta Orthopaedica 69 (1):89-94. https://doi.org/10.3109/17453679809002364.