1. Virchow, R. Die Krankhaften Geschwulste (August Hirschwald, Berlin, 1863). The first report that vascular structures in tumours are abnormal.
2. Goldman, E. Growth of malignant disease in man and the lower animals with special reference to vascular system. Proc. R. Soc. Med. 1, 1 (1907).
3. Warren, B. A. in Tumor Blood Circulation: Angiogenesis, vascular morphology and blood flow of experimental and human tumors (ed. Peterson, H. I.) 1–48 (CRC Press, Boca Raton, 1979).
4. Folkman, J. Tumor angiogenesis: therapeutic implications. N. Engl. J. Med. 285, 1182–1186 (1971). The first to suggest that inhibition of tumour angiogenesis could have therapeutic benefit.
5. Vaupel, P., Thews, O., Kelleher, D. K. & Hoeckel, M. Oxygenation of human tumors: the Mainz experience. Strahlenther. Onkol. 174 (Suppl. 4), 6–12 (1998).