Khzal, A.M. obaid 2024. The preoperative testing at laboratories in Najaf are being performed on patients at the time of the surgery in order to do this evaluation of blood-borne viruses . Journal of Medical Genetics and Clinical Biology. 1, 4 (Apr. 2024), 60–70. DOI:https://doi.org/10.61796/jmgcb.v1i4.406.