Linawati, N.M. et al. 2023. Euphorbia Milii and Propolis (EMP) Combination tea Maintains Cellular Immunity in Volunteers during the Pandemic of Covid-19 without interfering with the Functions of Liver and Kidney . Pharmakeftiki . 35, 2 (May 2023). DOI:https://doi.org/10.60988/p.v35i2.70.