How important is social class a factor in preterm birth?
Lumley
J
J
Centre for Study of Mothers' and Children's Health, La Trobe University, Carlton, Victoria, Australia.
D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007752:Obstetric Labor, Premature / Q000209:etiology*; D011247:Pregnancy; D012307:Risk Factors; D012923:Social Class; D006113:United Kingdom / Q000453:epidemiology