Dahl, S [Peak flow monitoring of asthmatic patients. 1. Basis for measurement procedures and normal values]. [electronic resource] - Ugeskrift for laeger Mar 1990 - 723-6 p. digital Publication Type: English Abstract; Journal Article; Review ISSN: 0041-5782 Subjects--Topical Terms: Asthma--diagnosisForced Expiratory Flow RatesHumansLung Volume Measurements--methodsPeak Expiratory Flow RateReference Values