TY JOUR TI VALVULAR BRONCHIAL CLOSURE IN THE TREATMENT OF BRONCHOPLEURAL FISTULAS KW JO Acta biomedica scientifica AU Drobyazgin, E.A. AU Chikinev, Y.V. AU Scherbina, K.I. AU Husainov, V.F. AU Sudovyh, I.E. PY 2017 IS 2 PB Scientific Center for Family Problems and Human Reproduction