title: William John Ritchie Simpson (1855-1931): public health and tropical medicine.
authors.forename: R A
authors.initials: RA
authors.lastname: Baker
authors.forename: R A
authors.initials: RA
authors.lastname: Bayliss
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011634:Public Health / Q000266:history; D012606:Scotland; D014330:Tropical Medicine / Q000266:history