Jackson RJ, Cox TF. A Robust Parameterization for Unbounded Covariates Within the Cox Proportional Hazards Model. ijsmr [Internet]. 2014 Nov. 6 [cited 2026 Jan. 29];3(4):331-9. Available from: http://www.lifescienceglobal.com/pms/index.php/ijsmr/article/view/2462