1. Department of General Oncology, S.P. Botkin State Clinical Hospital, Moscow, Moscow, Russian Federation
2. Department of Internal Medicine, Nicolae Testemițanu State University of Medicine and Pharmacy, Division of Pneumology and Allergology, Chisinau, Republic of Moldova
3. Department of Endocrinology, Russian Medical Academy of Continuous Postgraduate Education, Moscow, Russian Federation
4. Department of Hospital Surgery with the Course of Anesthesiology and Intensive Care, North-Caucasus Federal University, Stavropol, Russian Federation