Butler, Richard J., and William G. Johnson. “Regressions to Monitor Health Care Quality: A User’s Guide and a New Index”. International Journal of Statistics in Medical Research 1, no. 2 (December 20, 2012): 99–112. Accessed November 22, 2024. https://mail.lifescienceglobal.com/pms/index.php/ijsmr/article/view/683.