title: Box elder.
authors.affiliation: Department of Medicine, National Jewish Medical, Research Center, 1400 Jackson Street, Denver, CO 80206, USA.
authors.forename: Richard W
authors.initials: RW
authors.lastname: Weber
mesh_terms: D031002:Acer / Q000145:classification / Q000276:immunology*; D000393:Air Pollutants / Q000276:immunology*; D006801:Humans; D009656:North America; D011058:Pollen / Q000009:adverse effects* / Q000276:immunology
chemical_list: D000393:Air Pollutants