O. A. Klochikhina
PreventAge – International Institute of Integrative Preventive and Anti-Aging Medicine
Russian Federation

Olga A. Klochikhina – Dr. Sc. (Med.), Leading Research Officer

Volgograd Prospekt 32/5, Moscow 109316

V. V. Shprakh
Irkutsk State Medical Academy of Postgraduate Education – Branch Campus of the Russian Medical Academy of Continuing Professional Education
Russian Federation

Vladimir V. Shprakh – Dr. Sc. (Med.), Professor, Director

Yubileinyi 100, Irkutsk 664049

L. V. Stakhovskaya
Pirogov Russian National Research Medical University
Russian Federation

Lyudmila V. Stakhovskaya – Dr. Sc. (Med.), Professor of the Department of Neurology

Ostrovityanova str. 1, Moscow 117997

O. S. Polunina
Astrakhan State Medical University
Russian Federation

Olga S. Polunina – Dr. Sc. (Med.), Professor, Head of the Department of Internal Diseases of Pediatric Faculty

Bakinskaya str. 121, Astrakhan 414000

E. A. Polunina
Astrakhan State Medical University
Russian Federation

Ekaterina A. Polunina – Dr. Sc. (Med.), Associate Professor of the Department of Internal Medicine of Pediatric Faculty

Bakinskaya str. 121, Astrakhan 414000