1. Bronchodilator response to nebulized salbutamol in elderly patients with stable chronic airflow limitation;Geraghty;Respir Med,1993
2. Perceived effect on shortness of breath of an acute inhalation of saline or terbutaline: variability and sensitivity of a visual analogue scale in patients with asthma or COPD;Noseda;Eur Respir J,1992
3. Statement: Standards for the diagnosis and care of patients with chronic obstructive pulmonary disease;American Thoracic Society;Am J Respir Crit Care Med,1995
4. Applications of multivariate analysis of variance to repeated measures experiments;Cole;Biometrics,1966
5. Standardized lung function testing;Bull Eur Physiopathol Respir,1983