title: [Maternity and child hygiene work in the Shaanxi-Gansu-Ningxia border region].
authors.forename: S
authors.initials: S
authors.lastname: Kong
mesh_terms: D002669:Child Welfare / Q000266:history*; D002681:China; D049711:History, Modern 1601-; D008429:Maternal Welfare / Q000266:history*