Karadeniz, P. G., and I. Ercan. “On Comparing Survival Curves With Right-Censored Data According to the Events Occur at the Beginning, in the Middle and at the End of Study Period”. International Journal of Statistics in Medical Research, vol. 7, no. 4, Oct. 2018, pp. 117-28, doi:10.6000/1929-6029.2018.07.04.2.