{{Cite journal| issn = 0035-3655 (Print) 0035-3655 (Linking)| volume = 117| issue = 4| pages = 281–4| last1 = Fresard| first1 = F.| last2 = Vermeulen| first2 = B.| title = [Emergency medicine for the practitioner: abdominal pain]| journal = Rev Med Suisse Romande| date = 1997-04-01| pmid = 9281020}}