title: Hospital volume and neonatal mortality among very low birth weight infants.
authors.forename: Helmut
authors.initials: H
authors.lastname: Hummler
authors.forename: Dorothee B
authors.initials: DB
authors.lastname: Bartels
authors.forename: Christian F
authors.initials: CF
authors.lastname: Poets
mesh_terms: D005858:Germany; D017052:Hospital Mortality; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight; D007363:Intensive Care Units, Neonatal / Q000592:standards / Q000706:statistics & numerical data; D011787:Quality of Health Care