S. S. Ledentsova
City Polyclinic No. 76; St Petersburg State Pediatric Medical University
Russian Federation

Dermatologist, 11, Bldg. 1, Khlopina St., St Petersburg, 194021;

Teaching Assistant of the Department of General Practice, 2, Litovskaya St., St Petersburg, 194100

N. I. Gulyaev
Third Central Military Clinical Hospital named after A.A. Vishnevsky
Russian Federation

Dr. of Sci. (Med.), Chief of the Cardiology center, 

1, Novy, g/o Krasnogorsk, Moscow region, 143420

S. I. Sitkin
North-Western State Medical University named after I.I. Mechnikov; Almazov National Medical Research Centre
Russian Federation

Cand. of Sci. (Med.), Associate Professor of the Department of Internal Medicine Propedeutics, Gastroenterology and Dietetics n.a. S.M. Ryss, 41, Kirochnaya St., St Petersburg, 191015;

Head of the Epigenetics and Metagenomics Research Group, Institute of Perinatology and Pediatrics, 2, Akkuratova St., St Petersburg, 197341

P. V. Seliverstov
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Cand. of Sci. (Med.), Associate Professor of the Department of Internal Diseases, Сlinical Pharmacology and Nephrology,

41, Kirochnaya St., St Petersburg, 191015