The basis for the distinct biological activities of vascular endothelial growth factor receptor-1 ligands. Sci Signal. 2013;6(282):ra52. 

Anisimov A, Alitalo A, Korpisalo P, Soronen J, Kaijalainen S, Leppänen V-M, u. a.. Activated forms of VEGF-C and VEGF-D provide improved vascular function in skeletal muscle. Circ Res [Internet]. 2009;104(11):1302 - 12. http://view.ncbi.nlm.nih.gov/pubmed/19443835