This issue of Clinics in Perinatology, guest edited by Drs. Alan Spitzer and Dan Ellsbury, examines Quality Improvement in Neonatal and Perinatal Medicine. The first part of the issue addresses Tools of Quality Improvement and includes articles on The Quality Chasm in Neonatal and Perinatal Medicine; Evaluating the Medical Evidence; The Vermont Oxford Network Database; The Pediatrix Clinical Data Warehouse; Role of Regional Collaboratives: The California Perinatal Quality Care Collaborative Model; A Primer on Quality Improvement Methodology; Using Statistical Process Control Methodology;...