Irkutsk ChernetskayaN.I. Irkutsk State University, 1, Karl Marx St., Irkutsk, 664003, Russia cherna@yandex.ru Read more about N. I. Chernetskaya Kosolapova T.V. East Siberian State Academy of Education, Irkutsk, Nizhnyaya Embankment street, 6 kcenianev@mail.ru Read more about T. V. Kosolapova SuslovaAnastasiaAlexandrovna Center of Laboratory Analysis and Technical Measurements, Irkutsk fromice-@mail.ru Read more about Suslova Anastasia Alexandrovna ShumovskayaOlgaAlexandrovna OGAUZ IGKB № 1 Policlinic No. 1, 1, Volgskaya St., Irkutsk, 664046, Russia shumovs22@yandex.ru Read more about Shumovskaya Olga Alexandrovna LitvyakovaLarisaAlexandrovna Irkutsk State University, 1, Karl Marx St., Irkutsk, 664003, Russia litlaramusic@mail.ru Read more about Litvyakova Larisa Alexandrovna
