Cahyono SB, Bayupurnama P. How to Negotiate Difficult Colonoscopy to Optimize Cecal Intubation Rate. InaJGHE [Internet]. 2013 Sept. 19 [cited 2026 Oct. 13];14(2):97-102. Available from: https://www.ina-jghe.com/index.php/jghe/article/view/407