title: A study of the effect of birth interval on the development of 9-year-old schoolchildren in Singapore.
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001721:Birth Intervals; D001827:Body Height; D001835:Body Weight; D002648:Child; D002657:Child Development; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D012044:Regression Analysis; D012846:Singapore; D014825:Vocabulary