title: Papular urticaria and immune complexes.
mesh_terms: D000936:Antigen-Antibody Complex; D006801:Humans; D007299:Insect Bites and Stings / Q000150:complications*; D005423:Siphonaptera; D014581:Urticaria / Q000209:etiology*
chemical_list: D000936:Antigen-Antibody Complex