Ünsal, E., Eroğlu, Y., Büyükgebiz, B., Küpelioğlu, A., & Çevik, N. T. (1997). A case of juvenile ankylosing spondylitis and Crohn’s disease. The Turkish Journal of Pediatrics, 39(2), 277-280. https://doi.org/10.24953/turkjpediatr.1997.3399