title: Vitamin A deficiency in nineteenth century naval medicine.
authors.affiliation: School of Medicine, The Johns Hopkins University, Baltimore, MD, USA.
authors.forename: Richard D
authors.initials: RD
authors.lastname: Semba
mesh_terms: D004032:Diet / Q000266:history; D049672:History, 19th Century; D006801:Humans; D009326:Naval Medicine / Q000266:history*; D009755:Night Blindness / Q000453:epidemiology / Q000266:history; D014802:Vitamin A Deficiency / Q000453:epidemiology* / Q000266:history*