Guo P, Hu B, Gu W, Xu L, Wang D, Huang HS, Cavenee WK, Cheng S. Platelet-Derived Growth Factor-B Enhances Glioma Angiogenesis by Stimulating Vascular Endothelial Growth Factor Expression in Tumor Endothelia and by Promoting Pericyte Recruitment. The American Journal of Pathology. 2003 Apr;162(4):1083–93. doi: 10.1016/s0002-9440(10)63905-3.