V. V. Vasilyev
Penza State University; Penza Institute for Advanced Medical Training, Branch of the Russian Medical Academy of Continuing Professional Education of the Russian Ministry of Health
Russian Federation

Valery V. Vasilyev, D.M.Sc., Professor, Department for Hygiene, Public Health and Health Care

40 Krasnaya Street, Penza, 440026; 
8A Stasov Street, Penza, 440060

T. V. Ryabinina
Center for Hygiene and Epidemiology in the Penza Region
Russian Federation

Tamara V. Ryabinina, Candidate of Medical Sciences, Head Doctor

3 Marshal Krylov Street, Penza, 440026

M. V. Perekusihin
Penza State University; Rospotrebnadzor Office in the Penza Region
Russian Federation

Mihail V. Perekusihin, Chief, Office of the Federal Service for Surveillance on Consumer Rights Protection and Human Welfare (Rospotrebnadzor) in the Penza Region

40 Krasnaya Street, Penza, 440026;
38 Lermontov Street, Penza, 440026

E. V. Vasilev
Center for Hygiene and Epidemiology in the Penza Region
Russian Federation

Evgeny V. Vasilev, hygienist

3 Marshal Krylov Street, Penza, 440026