V.V. NIKOLENKO, I.V. FELDBLYUM, N.N.VOROBYЕVA Perm State Medical Academy named after acad. E.A. Vagner, 26 Petropavlovskaya St., Perm, Russian Federation, 614000 Nikolenko V. V. — Cand. Med. Sc., Associate Professor of the Department of Infectious Diseases, tel. (8342) 236-45-66, e-mail: [email protected] Feldblyum I.V. — D. Med. Sc., Professor of the Department of Epidemiology with a course of […]