TY JOUR TI CHEMICAL COMPOSITION OF ORGANIC SUBSTANCE OF OAK BAR ORDINARY (EMERGENCY) (QUERCUS ROBUR L, BEECH FAMILY - FAGACCAC) (MESSAGE III - CHLOROFORM EXTRACT) KW oak bark KW toluene extract KW n-hexane KW chloroform KW chromatography-mass spectrometry. JO Clinical Medicine and Pharmacology AU Platonov, V.V. AU Hadarcev, A.A. AU Suhih, G.T. AU Frankevich, V.E. AU Volochaeva, M.D. AU Dunaev, V.A. PY 2020 IS 6 PB LLC Information and publishing center Innovations and investments