1Matthys H,PohL M,Braig H,et al.The cardiopulmonary effects of celiprolol and propranolol in asymptomatic bronchial asthmatics.Br J Clin Pract Suppl,1985,40:33.
2Lindgren S,Bake B,Larsson S,et al.Clinical consequences of inadequate inhalation technique in asthma therapy.Eur J Respir Dis,1987,70:93-98.
3Plaza V,Sanchis J.Medical personnel and patient skill in the use of metered dose inhalers:a multicentric study.CESEA Group Respiration,1998,65:195-198.
4Van-Beerendonk I.Assessment of the inhalation technique in outpatients with asthma or chronic obstructive pulmonary disease using a metered-dose inhaler or d-279ry powder device.J Asthma,1998,35:273.
6Friedman M. Combined bronchodiator therapy in the managementof chronic obstructive pulmonary disease[ J]. Respirology, 1997,2:S19-23.
7Hasani A, Pavia D, Rotondetto S,et al. Effect of oral antibiotics onlung muccoiliary clearance during exacerbation of chronic obstruc-tive pulmonary disease[J]. Respir Med, 1998,92:442-447.
8Hosoe H, Kaise T, Ohmori K. Erdosteine enhances mucociliaryclearance in rats with and without airway inflammation[J]. J Phar-macol Toxicol Methods, 1998,40:165-171.
9Anzueto A,Jubran A, Ohar JA, et al. Effect of aerosolized surfaac-tant in patients with stable chronic bronchitis:a prospective ran-domized contrroled trial[J]. JAMA, 1997,278:1426-1 431.
10Houtmeyers E, Gosselik R, Decramer M, et al. Regulaion of muco-ciliary clearance in health and disease[ J]. Eur Respir J, 1999,13:1177-1188.
