| seroprevalence of hepatitis b and c virus infections among health students and health care workers in the najran region, southwestern saudi arabia: the need for national guidelines for health students. | the objectives of the study were to study the seroprevalence of hepatitis b virus (hbv) and hepatitis c virus (hcv) infections among health college students (hs) and health care workers (hcws) in the najran region of south-western saudi arabia and to study the students' knowledge of occupational exposure to blood-borne viral infections. | 2014 | 24912684 |