Concomitant azathioprine prevents new-onset arthralgia after initiation of vedolizumab: A retrospective cohort study. 

Kokkotis G., Zampeli E., Tzouvala M., Giotis I., Orfanos P., Benetou V. et al.

16th Congress of ECCO – Inflammatory Bowel Diseases 2021, July 2-3 & July 8-10, 2021.

https://doi.org/10.1093/ecco-jcc/jjab076.494