Odhiambo, Collins, John Odhiambo, and Bernard Omolo. 2017. “Validation of the Smooth Test of Goodness-of-Fit for Proportional Hazards in Cancer Survival Studies”. International Journal of Statistics in Medical Research 6 (2):49-67. https://doi.org/10.6000/1929-6029.2017.06.02.1.