title: China's ratio of male to female babies remains high despite sixth annual fall.
authors.affiliation: School of Public Health, Shandong University.
authors.forename: Shuping
authors.initials: S
authors.lastname: Dai
authors.affiliation: Shanghai.
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Li
mesh_terms: D002681:China; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012744:Sex Ratio