Frymiare v. Workmen's Compensation Appeal Board , 105 Pa. Commw. 325 ( 1987 )
Becerra v. Workmen's Compensation Appeal Board , 137 Pa. Commw. 362 ( 1991 )
Magayna v. Workmen's Compensation Appeal Board , 115 Pa. Commw. 268 ( 1988 )