00696naa#a2200181#i#450# EN\\bibl\19987 20241201234216.7 2409-3750 20180201b2018####ek#y0engy0150####ca RU COMPOSITION OF NATURAL SUBSTANCES OBTAINED BY THE METHOD OF CHROMATO-MASS-SPECTROMETRY FOR THE DETERMINATION OF THE POSSIBILITY OF THEIR USE IN MEDICINE Journal article Tula LLC Information and publishing center Innovations and investments 2018 3 с. Journal article local Медицина. Охрана здоровья. 61 Belozerova L. I. Borisova Ol'ga Nikolaevna naukaru.ru