State research center of preventive medicine, Moscow, Russian Federation
Research and Education Center of Moscow State University named after M.V. Lomonosov, Moscow, Russian Federation
First Moscow State Medical University, Moscow, Russian Federation
Neurology Laboratory -University Malaya Medical Centre, Kuala Lumpur, Malaysia
Center for Neurodiagnostic and Therapeutic Services Metropolitan Medical Center, Manila, Philippines
TTSH Rehabilitation Centre Ang Mo Kio Community Hospital, Singapore, Singapore
Federal State Budgetary Institution "State Scientifical Center of Coloproctology", Moscow, Russian Federation
State Healthcare Institution of Yaroslavl Region "Regional Clinical Cancer Hospital", Yaroslavl, Russian Federation
State Healthcare Institution Municipal Clinical Hospital No. 31 of Moscow, Moscow, Russian Federation
Ste-Elisabeth Hospital, Brussels, Belgium
Vienna General Hospital, Vienna, Austria
Charité University Hospital, Berlin, Germany
Zentralklinik Bad Berka, Bad Berka, Germany
CHU Bicetre, Le Kremlin-Bicêtre, France
Federal University of Minas Gerais, Belo Horizonte, Brazil
Private practice, Saúde, Brazil
University Hospital Basel, Basel, Switzerland