G. L. Ignatova
South Ural State Medical University, Healthcare Ministry of Russia
Russian Federation

Galina L. Ignatova, Doctor of Medicine, Professor, Head of Department of Therapy, Institute of Additional Physician Training, South Ural State Medical University, Healthcare Ministry of Russia; Chief Pulmonologist of Ural Federal District

ul. Vorovskogo 64, Chelyabinsk, 454092

O. V. Rodionova
South Ural State Medical University, Healthcare Ministry of Russia
Russian Federation

Ol’ga V. Rodionova, Candidate of Medicine, Associate Professor, Department of Therapy, Institute of Additional Physician Training

ul. Vorovskogo 64, Chelyabinsk, 454092

V. N. Antonov
South Ural State Medical University, Healthcare Ministry of Russia
Russian Federation

Vladimir N. Antonov, Candidate of Medicine, Associate Professor, Department of Therapy, Institute of Additional Physician Training, South Ural State Medical University; Chief Pulmonologist of Chelyabinsk Healthcare Department

ul. Vorovskogo 64, Chelyabinsk, 454092

S. G. Kandakov
Chelyabinsk Regional Center for Occupational Diseases
Russian Federation

Sergey G. Kandakov, Head

ul. Ostrovskogo 81, Chelyabinsk, 454021

N. M. Brovman
Chelyabinsk Regional Center for Occupational Diseases
Russian Federation

Nina M. Brovman, Occupational Hygienist

ul. Ostrovskogo 81, Chelyabinsk, 454021