1. Chen, K.S., Masliah, E., Mallory, M. and Gage, F.H., Synaptic loss in cognitively impaired aged rats is ameliorated by chronic human nerve growth factor infusion, Neuroscience, 68 (1995) 19–27.
2. Dodd, D.H. and Schultz, Jr., R.F., Computational procedures for estimating magnitude of effect for some analysis of variance designs, Psychol. Bull., 79 (1973) 391–395.
3. Fischer, W., Björklund, A., Chen, K. and Gage, F.H., NGF improves spatial memory in aged rodents as a function of age, J. Neurosci., 11 (1991) 1889–1906.
4. Issa, A.M., Rowe, W., Gauthier, S. and Meaney, M.J., Hypothalamic-pituitary-adrenal activity in aged, cognitively impaired and cognitively unimpaired rats, J. Neurosci., 10 (1990) 3247–3254.
5. Leonard, J.A. and Newman, R.C., Spatial orientation in the blind, Nature, 215 (1967) 1413–1414.