Han, Ling, M. A. Pisani, K.L. B. Araujo, and Heather G. Allore. 2016. “Use of Self-Matching to Control for Stable Patient Characteristics While Addressing Time-Varying Confounding on Treatment Effect: A Case Study of Older Intensive Care Patients”. International Journal of Statistics in Medical Research 5 (1):8-16. https://doi.org/10.6000/1929-6029.2016.05.01.2.