“ Measurement of Plasma Levels of Vascular Endothelial Growth Factor in Prostate Cancer Patients: Relationship With Clinical Stage, Gleason Score, Prostate Volume, and Serum Prostate-Specific Antigen ”. Clinics, vol. 61, no. 5, Oct. 2006, pp. 401-8, https://doi.org/10.1590/S1807-59322006000500006.