Ekspresi Sitokin Proinflamasi Tumor Necrosis Factor-alfa dan Antiinflamasi Interleukin-10 pada Kultur Peripheral Blood Mononuclear Cells dari Penduduk Permukiman Kumuh dan Nonkumuh yang Distimulasi Lipopolisakarida = Expression of Pro-Inflammatory Cytokine Tumor Necrosis Factor-alpha and Anti-Inflammatory Cytokine Interleukin-10 on Peripheral Blood Mononuclear Cells Culture Between Rural and Urban Residents