title: Hypothetical role of H2 blockers in chronic urticaria.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002908:Chronic Disease; D005260:Female; D005767:Gastrointestinal Diseases / Q000150:complications*; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014581:Urticaria / Q000188:drug therapy / Q000209:etiology*
chemical_list: D006635:Histamine H2 Antagonists