"Tumor Angiogenesis"^^ . "angiogenesisSYNCI-GLOSSCDR0000046529" . "C19361"^^ . "C1519670"^^ . "Tumor angiogenesis is the growth of new blood vessels that tumors need to grow. This is caused by the release of chemicals by the tumor.NCI-GLOSS" . . . "Tumor AngiogenesisPTNCI" . "Proliferation of blood vessels in a tumor.NCI" . "Pathologic Function"^^ . "Tumor_Angiogenesis"^^ . "Tumor Angiogenesis"^^ .