А. А. Вековцев, О. Г. Позднякова, Г. А. Белавина, and В. М. Позняковский, “CLINICAL TESTS OF PHYTOPREPARATE IN COMPLEX THERAPY OF ACUTE RESPIRATORY DISEASES”, МК, vol. 18, no. 1, pp. 40–46, Feb. 2019, Accessed: Aug. 04, 2026. [Online]. Available: https://www.mednauki.ru/index.php/MK/article/view/256