Sulyma, Volodymyr, and Olena Sulima. “Crohn’s Disease – Disease for Immunologists, Proctologists, Gastroenterologists or Rheumatologists?”. The Eurasia Proceedings of Health, Environment and Life Sciences 5 (August 5, 2022): 84–87. Accessed May 15, 2024. https://ephels.net/index.php/ephels/article/view/56.