Odhiambo C, Odhiambo J, Omolo B. Validation of the Smooth Test of Goodness-of-Fit for Proportional Hazards in Cancer Survival Studies. ijsmr [Internet]. 2017 Apr. 10 [cited 2024 May 5];6(2):49-67. Available from: https://www.lifescienceglobal.com/pms/index.php/ijsmr/article/view/4550