TY JOUR TI NEW METHODS OF PREOPERATIVE ANALGESIA IN CHILDREN KW JO Clinical Medicine and Pharmacology AU Nikiforov, A.V. AU Zavolko, M.S. AU Tokarev, A.R. AU Naumov, A.V. AU Eliseenkov, O.N. AU Sheluhina, N.V. AU Nikiforova, E.V. PY 2018 IS 4 PB LLC Information and publishing center Innovations and investments