Martin v. Industrial Commission , 91 Ill. 2d 288 ( 1982 )
Saldana v. Industrial Commission , 53 Ill. 2d 222 ( 1972 )
Long v. Industrial Commission , 62 Ill. 2d 289 ( 1976 )
International Harvester v. Industrial Commission , 93 Ill. 2d 59 ( 1982 )