Ibrahim, Toni, Emanuele Sacanna, Michele Gaudio, Laura Mercatali, Emanuela Scarpi, Wainer Zoli, Patrizia Serra, et al. (2011) 2011. “Role of RANK, RANKL, OPG, and CXCR4 Tissue Markers in Predicting Bone Metastases in Breast Cancer Patients.”. Clin Breast Cancer 11 (6): 369-75. doi:10.1016/j.clbc.2011.05.001.

Smith, Heath, and Yibin Kang. (2013) 2013. “Acute Infection Induces a Metastatic Niche: A Double Menace for Cancer Patients.”. Clin Cancer Res 19 (17): 4547-9. doi:10.1158/1078-0432.CCR-13-1524.