title: Birth intervals and development of nine-year-olds in Singapore.
authors.forename: E C
authors.initials: EC
authors.lastname: Martin
mesh_terms: D001208:Asia; D001210:Asia, Southeastern; D001695:Biology; D003906:Developing Countries; D011154:Population Characteristics; D012846:Singapore
keywords: Asia; Biological Characteristics; Biology; Developing Countries; Singapore; Southeastern Asia