1. Special report: An overview of the Joint Commission’s ORYX Initiative and proposed statistical methods;Lee;Health Services and Outcomes Research Methodology,2000
2. Joint Commission: Facts about ORYX: The next evolution in accreditation. www.jcaho.org/search_frm.html; see ORYX/Performance Measurement.
3. Getting hospital core measures on track: The continued evolution of ORYX;Jt Comm Perspect,2001
4. Measuring Quality Improvement in Healthcare: A Guide to Statistical Process Control Applications;Carey,2001
5. Introduction to Statistical Quality Control;Montgomery,1996