Özden Sertçelik, Ümran, Elif Korkmaz, Elif Babaoğlu, Sevinç Sarınç Ulaşlı, Deniz Köksal, and Salih Emri. 2018. “A Rare Cause of Pleural Effusion: Ankylosing Spondylitis”. Acta Medica 49 (2), 38-40. https://actamedica.org/index.php/actamedica/article/view/129.