Poniewierka, Elżbieta, Robert Dudkowiak, and Witold Marczyński. “Impact of Sex and Body Mass Index on Cecal Intubation Time. Is It a Myth That Colonoscopy Is Easier to Perform in Obese Than Lean People?”. Journal of Medical Science 85, no. 4 (December 29, 2016): 298–301. Accessed April 19, 2024. https://jms.ump.edu.pl/index.php/JMS/article/view/183.