title: Allergen of the month--annual ryegrass.
authors.forename: Richard W
authors.initials: RW
authors.lastname: Weber
mesh_terms: D000485:Allergens / Q000276:immunology*; D006801:Humans; D008129:Lolium / Q000145:classification / Q000276:immunology*; D009656:North America; D011058:Pollen / Q000276:immunology; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology*; D013020:South America
chemical_list: D000485:Allergens