For citations:
article E. Therapeutic strategy to prevent acute exacerbations of chronic obstructive pulmonary disease: clinical guidelines of American College of Chest Physicians and Canadian Thoracic Society Guideline (Part 2). PULMONOLOGIYA. 2016;26(3):267-291. (In Russ.) https://doi.org/10.18093/0869-0189-2016-26-3-267-291