title: Vitamin A and chronic laryngitis.
mesh_terms: D002908:Chronic Disease; D004032:Diet; D005260:Female; D006801:Humans; D007827:Laryngitis / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D014801:Vitamin A / Q000378:metabolism*; D014802:Vitamin A Deficiency / Q000150:complications
chemical_list: D014801:Vitamin A