Hospital volume and neonatal mortality among very low birth weight infants.
Hummler
Helmut
H
Bartels
Dorothee B
DB
Poets
Christian F
CF
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