NavGeneral InfoEmail Print Geography China (CHN) Coverage type Country Time period covered 01/1997 - 12/1998 Series or system World Atlas of Birth Defects Data type Disease registry Summary These data from the Beijing Birth Defect Surveillance System in Thirty Counties of Four Provinces (BDSS) are reported in the World Atlas of Birth Defects Second Edition. The area of coverage extends beyond Beijing. Keywords Abortion, Cleft lip and cleft palate, Congenital anomalies, Congenital heart anomalies, Digestive system malformations, Down's syndrome, Neural tube defects, Prevalence, Musculoskeletal anomalies, Urogenital anomalies, Abortive outcome Citation Suggested citation China Beijing Birth Defect Surveillance System in Thirty Counties of Four Provinces Data 1997-1998 - WHO GHDx Entry last modified on: Feb 22, 2019