Retrieved 13 November 2014. Shahrokni A, Saif MW (10 July 2013). "Metastatic pancreatic cancer: the dilemma of quality vs. quantity of life". JOP : Journal
"Enhertu approved in the EU for the treatment of HER2-positive metastatic breast cancer" (Press release). AstraZeneca. 20 January 2021. Archived from the
original on 7 July 2013. Retrieved 18 July 2013. "MetastaticCancer: Questions and Answers". National Cancer Institute. Archived from the original on 2008-08-27