title: Seeing purple.
authors.affiliation: Division of GI/Hepatology, Department of Medicine, Medical University of South Carolina, USA.
authors.forename: Adrian
authors.initials: A
authors.lastname: Reuben
mesh_terms: D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008512:Medicine in the Arts; D011164:Porphyrias / Q000266:history*; D011166:Porphyrins / Q000266:history*
chemical_list: D011166:Porphyrins