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NGF does not stimulate proliferation of leptomeningeal cells. Leptomeningeal cells were cultured in the presence of NGF (50 ng/ml), bFGF (10 ng/ml), or BDNF (50 ng/ml) for 2 d. 3[H]thymidine was added to the medium for the last 6 hr, and incorporation was analyzed. Error bars represent the mean + SD from four independent experiments.
