F. Da Paz Pereira, S. Viera Rodríguez, J. D’arc Costa Belfort, S. Da Silva Saldanha, R. Gomes Targino de Souza, and G. Melo de Almeida Londe, “Case report of ankylosing spondylitis: male patient with atypical onset stiffness”, UNIDA Sld., vol. 2, no. 1, pp. 25–33, Jan. 2023, Accessed: Nov. 09, 2026. Available: https://revistacientifica.unida.edu.py/publicaciones/index.php/unidasld/article/view/142