S. A. Boldueva
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Svetlana A. Boldueva - MD, PhD, Professor, Head of Chair of Faculty Therapy, North-Western State Medical University named after I.I. Mechnikov.

Kirochnaya ul. 41, St-Petersburg, 191015.

I. A. Leonova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Irina A. Leonova - MD, PhD, Associate Professor, Chair of Faculty Therapy, North-Western State Medical University named after I.I. Mechnikov.

Kirochnaya ul. 41, St-Petersburg, 191015.

O. V. Zakharova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Olga V. Zakharova - MD, PhD, Assiatant, Chair of Faculty Therapy, North-Western State Medical University named after I.I. Mechnikov.

Kirochnayaul. 41, St-Petersburg, 191015.