Efficacy of peppermint oil as an antispasmodic during endoscopic retrograde cholangiopancreatography.
Yamamoto N, Nakai Y, Sasahira N, Hirano K, Tsujino T, Isayama H, Komatsu Y, Tada M, Yoshida H, Kawabe T, Hiki N, Kaminishi M, Kurosaka H, Omata M.
Yamamoto N, et al. Among authors: hiki n.
J Gastroenterol Hepatol. 2006 Sep;21(9):1394-8. doi: 10.1111/j.1440-1746.2006.04307.x.
J Gastroenterol Hepatol. 2006.
PMID: 16911682
Clinical Trial.