title: Arthritis and hypergammaglobulinemic purpura in hypersensitivity pneumonitis.
authors.affiliation: Leiden University Hospital, the Netherlands.
authors.forename: H M
authors.initials: HM
authors.lastname: Oosterkamp
authors.forename: H
authors.initials: H
authors.lastname: van der Pijl
authors.forename: J
authors.initials: J
authors.lastname: Derksen
authors.forename: L N
authors.initials: LN
authors.lastname: Willems
authors.forename: P H
authors.initials: PH
authors.lastname: de Meijer
mesh_terms: D000936:Antigen-Antibody Complex / Q000097:blood; D001168:Arthritis / Q000209:etiology*; D001716:Bird Fancier's Lung / Q000097:blood / Q000150:complications*; D006801:Humans; D007070:Immunoglobulin A / Q000097:blood; D007074:Immunoglobulin G / Q000097:blood; D008297:Male; D008875:Middle Aged; D011694:Purpura, Hyperglobulinemic / Q000209:etiology*; D018366:Vasculitis, Leukocytoclastic, Cutaneous / Q000209:etiology
chemical_list: D000936:Antigen-Antibody Complex; D007070:Immunoglobulin A; D007074:Immunoglobulin G