title: Epidemiology of prematurity.
authors.affiliation: McMaster University, Hamilton.
authors.forename: J C
authors.initials: JC
authors.lastname: Sinclair
mesh_terms: D005260:Female; D006801:Humans; D015994:Incidence; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature / Q000453:epidemiology* / Q000517:prevention & control; D011247:Pregnancy; D006113:United Kingdom / Q000453:epidemiology; D014481:United States / Q000453:epidemiology