Pieper v. Ametek-Thermox Instruments Division , 526 Pa. 25 ( 1990 )
Hebden v. Workmen's Compensation Appeal Board , 534 Pa. 327 ( 1993 )
Kanyan v. Workmen's Compensation Appeal Board , 125 Pa. Commw. 173 ( 1989 )
Roussos v. Workmen's Compensation Appeal Board , 157 Pa. Commw. 584 ( 1993 )