Birth weight of newborns and maternal health.
D000328:Adult; D005006:Ethnicity; D005260:Female; D006262:Health; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008427:Maternal Health Services; D018566:Pregnancy, High-Risk; D012744:Sex Ratio; D012846:Singapore