Higman , L. ., L. R. . Hearld, N. W. . Carroll, S. J. . O’Connor, and J. . Szychowski. “Identifying the Surgical Profiles of U.S. Acute Care Hospitals: A Latent Class Analysis”. Journal of Strategic Innovation and Sustainability, vol. 16, no. 1, June 2021, https://articlearchives.co/index.php/JSIS/article/view/5116.