Öztekin, S. N. S., Sonmez, R., Sarsan, A. and Alkan, H. (2021) “A case of bilateral hip and knee osteonecrosis in a patient with ankylosing spondylitis who used steroids due to immune thrombocytopenic purpura”, Journal of Surgery and Medicine, 5(6), pp. 651–653. doi: 10.28982/josam.799391.