title: [Background of drug therapy and surgical indications for chronic sinusitis].
mesh_terms: D002908:Chronic Disease; D006025:Glycosaminoglycans / Q000378:metabolism*; D006801:Humans; D012852:Sinusitis / Q000188:drug therapy / Q000378:metabolism* / Q000601:surgery
chemical_list: D006025:Glycosaminoglycans