We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe symbol of modern medicine: why one snake is more than two.AuthorsWilcox RA; Whitham EMPublicationAnnals of internal medicine, 2003, Vol 138, Issue 8, p673ISSN1539-3704Publication typearticleDOI10.7326/0003-4819-138-8-200304150-00016