Thiessen, B Effect of freon inhalation on maximal expiratoryflows and heart rhythm after treatment with salbutamol and ipratropium bromide. [electronic resource] - European journal of respiratory diseases Jun 1980 - 156-61 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 0106-4339 Subjects--Topical Terms: AdultAerosol Propellants--adverse effectsAerosols--adverse effectsAlbuterol--administration & dosageArrhythmias, Cardiac--chemically inducedAsthma--drug therapyAtropine Derivatives--therapeutic useBronchi--drug effectsBronchitis--drug therapyChlorofluorocarbons, Methane--adverse effectsClinical Trials as TopicDouble-Blind MethodDrug InteractionsFemaleForced Expiratory Flow RatesForced Expiratory VolumeHeart Rate--drug effectsHumansIpratropium--administration & dosageMaleMiddle Aged