Effects of isoflurane, ketamine and fentanyl/N2O on concentrations of brain and plasma catecholamines during near-complete cerebral ischemia in the rat. - Miura,Y.; Mackensen,G.B.; Nellgard,B.; Pearlstein,R.D.; Bart,R.D.; Dexter,F.; Warner,D.S. (Anesth Analg, 1999)