Sitompul, Y., S. Syukur, S. Syafrizayanti, and E. Purwati. “Absence of BRCA1 185delAG, BRCA1 5382InsC and BRCA2 6174delT Among Hereditary Breast Cancer Patients in North Sumatera, Indonesia”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 38, no. 2, Dec. 2017, pp. 152-60, https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3672.