Evaluation of an in vitro coculture model for the blood-brain barrier: comparison of human umbilical vein endothelial cells (ECV304) and rat glioma cells (C6) from two commercial sources. - Scism JL; Laska DA; Horn JW; Gimple JL; Pratt SE; Shepard RL; Dantzig AH; Wrighton SA (In vitro cellular & developmental biology. Animal, 1999)