TRENDS OF COVID-19 IN THE CENTRAL AFRICA SUB-REGION: EFFECTIVE HEALTH CARE, EFFECT OF ENDOGENOUS PARAMETERS OR A MATTER OF TIME? Статья Arsene M.MJ., Mouafo H.T., Podoprigora I.V., Smolyakova L.A., Yashina N.V., Ermolaev A.V., Mefyod K.M., Zhygunova A.V. JOURNAL OF PHARMACEUTICAL RESEARCH INTERNATIONAL. SCIENCEDOMAIN INT. Том 33. 2021. С. 170-186