TY JOUR TI STATE OF CIRCADIAN RHYTHMS OF LUNG FUNCTION IN PATIENTS WITH SEVERE CHRONIC OBSTRUCTIVE PULMONARY DISEASE KW chronic obstructive pulmonary disease KW types of biorhythms of the respiratory system JO Bulletin physiology and pathology of respiration AU Kostrova, I.V. AU Prikhodko, O.B. AU Goryacheva, S.A. PY 2017 IS 1 PB Far Eastern Scientific Center of Physiology and Pathology of Respiration