SEROEPIDEMIOLOGICAL STUDY OF HEPATITIS B IN LABORATORY PERSONNEL OF TEHRAN - A. Sohrabi Zadeh,; T. Mokhtari Azad,; M.Mabmoudi,; H. Tabatabai,; N. Sabouri,; K. Holakoui,; M.R. Hosseini,; M. Farhadi,; R. Nategh, (Iranian Journal of Public Health)