title: Determining patient norms.
authors.forename: P
authors.initials: P
authors.lastname: Hammer
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D011247:Pregnancy; D011786:Quality Control; D012016:Reference Values; D012129:Respiratory Function Tests / Q000379:methods*