In Price v. Workmen's Compensation Appeal Board (Metallurgical Resources), 533 Pa. 500, 626 A.2d 114 (1993) the Supreme Court clarified two issues: when does the limitations period under Section 315, 77 P.S. 602, begin to run for total disability claims under occupational disease provisions of Section 301(c)(2), and when is the claimant charged with knowledge of such disability. It reiterated that the statute begins to run on such claims when a claimant knows or should know that he/she suffers total disability due to an occupational disease and that discovery of such condition first occurs when a competent medical diagnosis is made known to a claimant.