The 1800 MHz Radiofrequency Electromagnetic Fields Can Lead to a Reduction in the Number of CD4+T Cells, IL-2, IL-10, and IL-17a on PBMC Cultures oleh Maimun Z Arthamin, Anis Sulalah, Resvina Resvina, Chomsin Widodo, Agustina T Endharti, Edi Widjajanto, Tedy Juliandhy