1. Angiogenic factors;Folkman;Science,1987
2. Tumor angiogenesis: a quantitative method for histologic grading;Brem;J. Natl. Cancer Inst.,1972
3. Microvasculature of human colorectal epithelial tumors. An electron microscopic study;Wang;Virchows Arch. A,1982
4. Differential expression of markers for endothelial cells, pericytes and basal lamina in the microvasculature of tumors and granulation tissues;Schlingemann;Am. J. Pathol.,1991