1. Privolzhsky District Medical Center, Federal Medical and Biological Agency of Russia; N.I. Lobachevsky National Research Nizhny Novgorod State University; City Clinical Hospital No. 39
2. N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
3. City Clinical Hospital No. 39
4. Volga Research Medical University
5. Federal Siberian Scientific and Clinical Center, Federal Medical and Biological Agency of Russia; Clinical Hospital No. 51, Federal Medical and Biological Agency of Russia; V.F. Voyno-Yasenetskiy Krasnoyarsk State Medical University
6. Mordovian Republican Central Clinical Hospital