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NOVA2 is needed for angiogenesis. (A) A low magnification drawing showing angiogenesis in a network of small vessels positive for NOVA2 (rose) growing from a pre-existing vessel (black). (B) A growing vessel is shown at higher magnification. The NOVA2-positive flat cells (rose) are endothelia adjacent to the lumen. The latter contains uncolored images of blood cells. The networks on both sides correspond to structures adjacent to the external face of endothelial cells.
