1. Isolation of nitric oxide synthase, a calmodulin-requiring enzyme;Bredt;Proc. Natl. Acad. Sci. USA,1990
2. Cloned and expressed nitric oxide synthase structurally resembles cytochrome P-450 reductase;Bredt;Nature,1991
3. Evidence that hepatic encephalopathy results from a defect of glutamatergic synaptic regulation;Butterworth;Mol. Neuropharmacol.,1992
4. R.F. Butterworth, Hepatic encephalopathy, in: I.M. Arias, J.L. Boyer, N. Fausto, W.B. Jakoby, D.A. Schachter, D.A. Shafritz (Eds.), The Liver: Biology and Pathobiology, 3rd edn., Raven Press, New York, 1994, pp. 1193–1208.
5. Ammonia: key factor in the pathogenesis of hepatic encephalopathy;Butterworth;Neurochem. Pathol.,1987