457 A.2d 1331 Tastykake, Inc., Petitioner v. Workmen’s Compensation Appeal Board (Michael K. Fornwalt), Respondents. Commonwealth Court of Pennsylvania. April 6, 1983. Workmen’s compensation — Burden of proof — Causation — Notice. 1. Where no obvious causal relationship exists between a work incident and a disabling injury, a workmen’s compensation claimant has the burden of […]