Salah Aldean Qassim Haidari, S., and B. Abd Al-Aziz Al-Talib. “Robustifying Cox - Regression Model Estimation Using M - Estimators With Application to Breast Cancer Patients”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 20, no. 2, Dec. 2023, pp. 166-74, doi:10.33899/iqjoss.2023.181221.