Gökbulut, Volkan, Yasemin Özin, İsmail Hakkı Kalkan, Derya Arı, Mahmut Yüksel, Zeki Mesut Yalın Kılıç, and Ertuğrul Kayaçetin. 2022. “Parenteral Methotrexate Is Efficient in the Treatment of Azathioprine Refractory Crohn’s Disease”. Turkish Journal of Gastroenterology 33 (2):111-18. https://doi.org/10.5152/tjg.2022.21459.