Amjad, W., Hussain, Q., Ullah, W., & Hurairah, A. (2018). A tough scope to swallow: endoscopic retrograde cholangiopancreatography through percutaneous endoscopic gastrostomy. Turkish Journal of Gastroenterology, 29(1), 123–125. https://doi.org/10.5152/tjg.2018.17390