[seroprevalence of hbv, hcv, and hiv among blood donors in irapuato, mexico]. | to investigate the seroprevalence of viral markers for the human immunodeficiency virus (hiv), and the hepatitis b (hbv) and c (hcv) viruses, in blood donors at the general hospital no. 2 family medicine unit, of the mexican social security institute in irapuato, mexico. | 2003 | 14974281 |