1. Department of Thoracic Surgery, Ural Research Institute for Phthisiopulmonology, the Branch of National Medical Research Centre of Tuberculosis and Inflectional Diseases, Ekaterinburg, Russia
2. Ural State Medical University, Ekaterinburg, Russia
3. Department of Endoscopy, Ural Research Institute for Phthisiopulmonology, the Branch of National Medical Research Centre of Tuberculosis and Inflectional Diseases, Ekaterinburg, Russia