1. Global cancer statistics, 2002;Parkin;CA Cancer J Clin,2005
2. Ferlay J, Ervik M, Dikshit R, Eser S, Mathers C, Rebelo M, Parkin DM, Forman D, Bray F. Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 11. Globocan 2012 v1.0 [cited 2017 Jun. 14]; Available from: http://globocan.iarc.fr.
3. National Cancer Institute. SEER Cancer Statistics Factsheets: Breast Cancer. [cited 2017 Feb 1]; Available from: https://seer.cancer.gov/statfacts/html/breast.html.
4. Impact of molecular subtypes on metastatic breast cancer patients: a SEER population-based study;Gong;Sci Rep,2017
5. Targeting the cyclin-dependent kinases (CDK) 4/6 in estrogen receptor-positive breast cancers;Finn;Breast Cancer Res,2016