S. M. Berenholtz, D. M. Needham, L. H. Lubomski, C. A. Goeschel and P. J. Pronovost, “Improving the Quality of Quality Improvement Projects,” Joint Commission Journal on Quality and Patient Safety, Vol. 36, No. 10, 2010, pp. 468-473.
 “Glossary of Statistical Terms.”
 B. Frilling, R. Schiele, A. K. Gitt, R. Zahn, S. Schneider, H. G. Glunz, et al., “Too Little Aspirin for Secondary Prevention after Acute Myocardial Infarction in Patients at High Risk for Cardiovascular Events: Results from the Mitra Study,” American Heart Journal, Vol. 148, No. 2, 2004, pp. 306-311.
 G. A. Barnard, “Discussion of Paper by V.P. Godambe and M.E. Thompson, Bayes, Fiducial and Frequent Aspects of Regression Analysis in Survey Sampling,” Journals of the Royal Statistical Society B, Vol. 33, 1973, pp. 361-390.
 W. G. Cochran, “The Use of Analysis of Variance in Enumeration by Sampling,” Journal of the American Statistical Association, Vol. 34, No. 207, 1939, pp. 492-511.
 R. J. Perla, L. P. Provost and S. K. Murray, “Sampling Considerations for Health Care Improvement,” Quality Management in Health Care, Vol. 22, No. 1, 2013, pp. 36-47.
 D. M. Berwick, “Continuous Improvement as an Ideal in Health Care,” New England Journal of Medicine, Vol. 320, No. 1, 1989, pp. 53-56.
 W. E. Deming, “On the Interpretation of Censuses as Samples,” Journal of the American Statistical Association, Vol. 36, No. 213, 1941, pp. 45-49.
 H. O. Hartley and J. Sielken, “A ‘Super-Population Viewpoint’ for Finite Population Sampling,” Biometrics, Vol. 31, No. 2, 1975, pp. 411-422.
 M. Elliott, A. Zaslavsky and P. Cleary, “Are Finite Population Corrections Appropriate When Profiling Institutions?” Health Services and Outcomes Research Methodology, Vol. 6, No. 3-4, 2006, pp. 153-156.
 A. A. Gawande, D. M. Studdert, E. J. Orav, T. A. Brennan and M. J. Zinner, “Risk Factors for Retained Instruments and Sponges after Surgery,” New England Journal of Medicine, Vol. 348, No. 3, 2003, pp. 229-235.
 Agency for Healthcare Research and Quality, “Surveys on Patient Safety Culture.”
 J. de Baldwin, S. R. Daugherty and P. M. Ryan, “How Residents View Their Clinical Supervision: A Reanalysis of Classic National Survey Data,” Journal of Graduate Medical Education, Vol. 2, No. 1, 2010, pp. 37-45.
 “Estimation and Sample Size Determination for Finite Populations.”
 J. Cromwell, M. Trisolini, G. Pope, J. Mitchell and L. Greenwald, “Pay for Performance in Health Care: Methods and Approaches,” RTI International, Research Triangle Park, 2011.
 P. T. Ross, E. T. McMyler, S. G. Anderson, K. A. Saran, A. Urteaga-Fuentes, R. C. Boothman, et al., “Trainees’ Perceptions of Patient Safety Practices: Recounting Failures of Supervision,” Joint Commission Journal on Quality and Patient Safety, Vol. 37, No. 2, 2011, pp. 88-95.
 T. Hasegawa, S. Fujita, K. Seto, T. Kitazawa and K. Matsumoto, “Patients’ Identification and Reporting of Unsafe Events at Six Hospitals in Japan,” Joint Commission Journal on Quality and Patient Safety, Vol. 37, No. 11, 2011, pp. 502-508.
 R. Coffey, M. Barrett, B. Houchens, K. Ho, E. Moy, J. Brady, et al., “National Healthcare Disparities Report, 2008. Healthcare Cost and Utilization Project (Hcup). Appendix B: Healthcare Cost and Utilization Project (Hcup),” 2008.