title: Letter: Preoperative pulmonary function testing.
mesh_terms: D000367:Age Factors; D001249:Asthma / Q000150:complications*; D002648:Child; D006801:Humans; D006967:Hypersensitivity / Q000150:complications; D011300:Preoperative Care; D012129:Respiratory Function Tests; D013514:Surgical Procedures, Operative