006840000a22002050004500 PH-MaWHO 20241108112537.0 WHO/EPI/GEN/90.6 WHO Documents File WHO Expanded Programme on Immunization. 666322 Protocol for assessing prevalence of hepatitis B infection in antenatal patients. Geneva : World Health Organization, 1990. 12p. http://whqlibdoc.who.int/hq/1990/WHO_EPI_GEN_90.6.pdf. eng Hepatitis B Epidemiology In pregnancy 666323 Prenatal care 285832 WHOLIS DOC Mark 06-10-2008 15:02:29 12880 12880 0 0 0 0 WPRO WPRO 2021-05-24 0 WHO Documents File 12880 2024-01-24 00:00:00 2021-05-24 DOC