1. 1. Asahara, T., Murohara, T., Sullivan, A., Silver, M., van der Zee, R., Li, T., Witzenbichler, B., Schatteman, G. and Isner, J. M. 1997. Isolation of putative progenitor endothelial cells for angiogenesis. Science 275: 964–967.
2. 2. Brown, N. O., Patnaik, A. K. and MacEwen, E. G. 1985. Canine hemangiosarcoma: retrospective analysis of 104 cases. J. Am. Vet. Med. Assoc. 186: 56–58.
3. 3. Chistiakov, D. A., Orekhov, A. N. and Bobryshev, Y. V. 2016. Endothelial PECAM-1 and its function in vascular physiology and atherogenic pathology. Exp. Mol. Pathol. 100: 409–415.
4. 4. Cotran, R., Kumar, V. and Robbins, S. 2010. Robbins And Cotran Pathologic Basis Of Disease. Philadelphia, PA Saunders, Ipswich.
5. 5. Dragu, D. L., Necula, L. G., Bleotu, C., Diaconu, C. C. and Chivu-Economescu, M. 2015. Therapies targeting cancer stem cells: Current trends and future challenges. World J. Stem Cells 7: 1185–1201.