STUDY ON THE PERFORMANCE OF SOME PARAMETRIC PROPORTIONAL HAZARD MODELS AND SEMI-PARAMETRIC MODEL IN THE ANALYSIS OF BREAST CANCER DATA. FJS [Internet]. 2023 Nov. 7 [cited 2025 Sep. 12];7(5):181-4. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/2011