The effects of patient volume and level of care at the hospital of birth on neonatal mortality.
Spitzer
A R
AR
Thomas Jefferson University, Philadalphia, USA.
Lipsky
C L
CL
D002140:California; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal / Q000145:classification / Q000592:standards* / Q000706:statistics & numerical data; D010043:Outcome and Process Assessment, Health Care; D012040:Regional Health Planning; D012189:Retrospective Studies; D018570:Risk Assessment