The effect of positive expiratory pressure (PEP) therapy on symptoms, quality of life and incidence of re-exacerbation in patients with acute exacerbations of chronic obstructive pulmonary disease: a multicentre, randomised controlled trial
Osadnik, C. R., McDonald, C. F., Miller, B. R., Hill, C. J., Tarrant, B., Steward, R., Chao, C., Stodden, N., Oliveira, C. C., Gagliardi, N., Holland, A. E.
The effect of positive expiratory pressure (PEP) therapy on symptoms, quality of life and incidence of re-exacerbation in patients with acute exacerbations of chronic obstructive pulmonary disease: a multicentre, randomised controlled trial