TY JOUR TI ECHINACEA PURPUREA AS A MEDICINAL PLANT KW Echinacea purpurea KW immunity KW preventive treatment JO Bulletin of KSAU AU Miroshina, T.A. AU Poznyakovsky, V.M. AU Miroshin, E.V. PY 2024 IS 0 PB Krasnoyarsk State Agrarian University