Shreyas Saligram, David J. Levinthal and Klaus Bielefeldt (2015) “Coalescent Cyclical Vomiting: A Manifestation of Narcotic Bowel Syndrome?”, Gastro, 1(5), pp. 111–113. Available at: https://openventio.us/index.php/GOJ/article/view/1222 (Accessed: 22 September 2026).