A.  B. Shishkin
Saint Petersburg Clinical Hospital
Russian Federation

Alexander B. Shishkin, MD, PhD, Head of the Neurological Department

Saint Petersburg

V.  V. Bogomolov
Saint Petersburg Clinical Hospital
Russian Federation

Vadim V. Bogomolov, MD, PhD, Neurologist

Saint Petersburg

I.  V. Rikov
Saint Petersburg Clinical Hospital; Almazov National Medical Research Centre
Russian Federation

Ivan V. Rikov, MD, PhD, Head of the Oncology Department

Saint Petersburg

M.  F. Balluzek
Saint Petersburg Clinical Hospital
Russian Federation

Marina F. Balluzek, MD, PhD, DSc, Professor, Deputy Physician-in-Chief for Medicine, Head of the Cardiology Department

Saint Petersburg

D.  D. Shidakova
Almazov National Medical Research Centre
Russian Federation

Darina D. Shidakova, Resident

Saint Petersburg