“Characteristics of Patients With Estrogen Receptor (ER)-Negative, Progesterone Receptor (PR)-Negative, and HER2-Negative Invasive Breast Cancer in Dr. Hasan Sadikin General Hospital, Bandung, Indonesia from 2010 to 2011”. Althea Medical Journal, vol. 2, no. 3, Sept. 2015, pp. 391-4, https://journal.fk.unpad.ac.id/index.php/amj/article/view/494.