Expectoration disturbances in patients with COPD
V. N. Solopov, I. V. Lunichkina Expectoration disturbances in patients with COPD Soviet Association of aid to patients with cystic fibrosis Pogodinscaya 8 — 2, 119121 Moscow, USSR. We developed a method of estimation of the evacuation time (expectoration time) (Texp) of bronchial contents stained …