1. 1. Adams, J., Carder, P. J., Downey, S., Forbes, M. A., MacLennan, K., Allgar, V., Kaufman, S., Hallam, S., Bicknell, R., Walker, J. J., Cairnduff, F., Selby, P. J., Perren, T. J., Lansdown, M. and Banks, R. E. 2000. Vascular endothelial growth factor (VEGF) in breast cancer: comparison of plasma, serum, and tissue VEGF and microvessel density and effects of tamoxifen. Cancer Res. 60: 2898–2905.
2. 2. Argyle, D. J. and Khanna, C. 2013. Tumor biology and metastasis. pp. 30–50. In: Withrow and McEwen’s Small Animal Clinical Oncology, 5th ed. (Withrow, S. J., Vail, D. M. and Page, R. L., eds.), Elsevier Saunders, St. Louis.
3. 3. Bahr, K. L., Sharkey, L. C., Murakami, T. and Feeney, D. A. 2013. Accuracy of US-guided FNA of focal liver lesions in dogs: 140 cases (2005-2008). J. Am. Anim. Hosp. Assoc. 49: 190–196.
4. 4. Beştaş, R., Kaplan, M. A. and Işikdoğan, A. 2014. The correlation between serum VEGF levels and known prognostic risk factors in colorectal carcinoma. Hepatogastroenterology 61: 267–271.
5. 5. Clifford, C. A., Hughes, D., Beal, M. W., Henry, C. J., Drobatz, K. J. and Sorenmo, K. U. 2002. Vascular endothelial growth factor concentrations in body cavity effusions in dogs. J. Vet. Intern. Med. 16: 164–168.