[1] UNIV NEBRASKA, MED CTR, DEPT NEUROL, OMAHA, NE 68105 USA
[2] VET ADM HOSP, DEPT NEUROL, SALT LAKE CITY, UT 84113 USA
[3] VET ADM HOSP, SERV NEUROL, SALT LAKE CITY, UT 84113 USA
[4] VET ADM HOSP, DEPT PSYCHOL, SALT LAKE CITY, UT 84113 USA
[5] VET ADM HOSP, SERV PSYCHOL, SALT LAKE CITY, UT 84113 USA