1. DEPARTMENT HYGIENE AND ECOLOGY, IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE; ACCREDITED LABORATORY OF OCCUPATIONAL HEALTH AND SAFETY, WROCLAW UNIVERSITY OF SCIENCE TECHNOLOGY, WROCLAW, POLAND
2. DEPARTMENT OF PHTHISIOLOGY AND PULMONOLOGY WITH COURSE OF OCCUPATIONAL DISEASES, IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE
3. DEPARTMENT HYGIENE AND ECOLOGY, IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE