Cytokines have prominent roles in activating of different T cells and shifting the immune response. in this study the role of three cytokines (IL-21. IL-23 and IL-27) is investigated in the liver transplant rejection. Three EDTA-treated blood samples were collected from each liver transplanted patient in 1st. https://www.roneverhart.com/HP-Chromebook-X360-14b-ca0013dx-14-HD-Touchscreen-1366-x-768-Laptop-Intel-Celeron-N4000-4-GB-RAM-32-GB-eMMC-Intel-UHD/