title: Layers of inequality: power, policy, and health.
authors.affiliation: Richard J. David is with the Division of Neonatology, John H. Stroger, Jr. Hospital of Cook County, Chicago, IL, and the Department of Pediatrics, College of Medicine, University of Illinois at Chicago. James W. Collins is with the Division of Neonatology, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, and the Department of Pediatrics, Northwestern University Medical School, Chicago, IL.
authors.forename: Richard J
authors.initials: RJ
authors.lastname: David
authors.forename: James W
authors.initials: JW
authors.lastname: Collins
mesh_terms: D054624:Health Status Disparities; D054625:Healthcare Disparities / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D011640:Public Policy; D044469:Racial Groups / Q000706:statistics & numerical data; D012923:Social Class; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology