title: On call. Vitamin a and macular degeneration.
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D006801:Humans; D008268:Macular Degeneration / Q000178:diet therapy / Q000517:prevention & control*; D014801:Vitamin A / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D014801:Vitamin A