For citations:
Visel I.Yu., Shmelev E.I., Visel A.A. Evaluation of patients with chronic bronchitis and COPD during 7-year follow-up. PULMONOLOGIYA. 2008;(4):41-46. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-4-41-46
Visel I.Yu., Shmelev E.I., Visel A.A. Evaluation of patients with chronic bronchitis and COPD during 7-year follow-up. PULMONOLOGIYA. 2008;(4):41-46. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-4-41-46