Dewi, Sumartini, Stefanie Yuliana Usman, Guntur Darmawan, and Dolvy Girawan. 2020. “Probiotics in Ankylosing Spondylitis: A Possible Potency”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy 20 (3):184-88. https://doi.org/10.24871/2032019184-188.