Horsley, J R The effect of methacholine inhalation challenge on regional residual volume in patients with subclinical asthma. [electronic resource] - Chest Jan 1985 - 29-34 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0012-3692 Standard No.: 10.1378/chest.87.1.29 doi Subjects--Topical Terms: AdultAsthma--therapyFemaleForced Expiratory VolumeHumansLung Volume MeasurementsMaleMethacholine ChlorideMethacholine Compounds--administration & dosageMiddle AgedRespiratory Therapy