title: Commentary: Unravelling the mystery of variation in birthweight.
authors.affiliation: Norwegian Institute of Public Health, Postboks 4404 Nydalen, N-0403 Oslo, Norway. siri.vangen@fhi.no
authors.forename: Siri
authors.initials: S
authors.lastname: Vangen
mesh_terms: D001724:Birth Weight; D001938:Brazil; D002585:Cesarean Section; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D011247:Pregnancy; D012959:Socioeconomic Factors