title: Paul Karrer--research on vitamins.
authors.forename: M A
authors.initials: MA
authors.lastname: Shampo
authors.forename: R A
authors.initials: RA
authors.lastname: Kyle
mesh_terms: D002338:Carotenoids / Q000266:history; D002625:Chemistry, Organic / Q000266:history; D005415:Flavins / Q000266:history; D006172:Guyana; D049673:History, 20th Century; D006801:Humans; D009613:Nobel Prize; D010678:Philately; D013557:Switzerland; D014815:Vitamins / Q000737:chemistry / Q000266:history*
chemical_list: D005415:Flavins; D014815:Vitamins; D002338:Carotenoids