HRADSKY , M., and K. FURUGÅRD. “The Effect of Metoclopramide (Primperan®) on the Pyloric Sphincter During Gastroscopic Examination: A Double Blind Investigation Versus Placebo”. Upsala Journal of Medical Sciences 83, no. 2 (June 1, 1978): 103-104. Accessed April 4, 2026. https://ujms.net/index.php/ujms/article/view/7241.