- Growth factor treatment enhances vestibular hair cell renewal and results in improved vestibular function. Kopke, R.D., Jackson, R.L., Li, G., Rasmussen, M.D., Hoffer, M.E., Frenz, D.A., Costello, M., Schultheiss, P., Van De Water, T.R. Proc. Natl. Acad. Sci. U.S.A. (2001)









