Opinion by
This is a direct administrative appeal. The Workmen’s Compensation Appeal Board of Pennsylvania (Board) reversed a referee’s award of compensation for total disability and acknowledged the employer’s right to subrogation of the amount paid to a claimant under a non-occupational insurance plan in these peculiar circumstances.
Since the proceedings before the referee as-well as the Board postdated the 1972 Amendments to the Workmen’s Compensation Act, the respective evidentiary review functions of the referee and Board are controlled by our decision in Universal Cyclops Steel Corp. v. Krawczynski, 9 Pa. Commonwealth Ct. 176, 305 A.2d 757 (1973). As the Board did not take additional evidence, the referee was the ultimate finder of fact, and his determinations of the credibility of witnesses and the weight to be given the evidence were conclusive on the Board and on us. We must, thus, conclude that the Board erred in substituting its findings for those of the referee,
Consistent with this review, we reverse the Board, and reinstate the referee’s award, with subrogation rights to Appellee.
First, we consider Appellee’s contention that the instant claim is barred because Appellant failed to give timely notice of the accident as is required by Section 311, 77 P.S. §631 (Supp. 1974-75). At the time pertinent to this appeal, Section 311 provided: “Unless the employe or someone in his behalf, or some of the dependents or someone in their behalf, shall give notice thereof to the employer within twenty-one days after the accident, no compensation shall be due until such notice be given, and, unless such notice be given within one hundred and twenty days after the occurrence of the injury, no compensation shall be allowed.” Recognizing that this section is to be liberally construed, it is, nevertheless, mandatory and bars a claim where it is found that appropriate notice of the accident has not been given to the employer within 120 days of its occurrence. Canterna v. U. S. Steel Corp., 12 Pa. Commonwealth Ct. 579, 317 A.2d 355 (1974).
The referee found as a fact that Appellee was given timely notice of the accident. The Board, however, discarded this finding and substituted its own to the effect that the first notice of the accident was December 16, 1972 when Appellee was first notified of the claim petition. Suffice it to say that the referee had before him substantial competent evidence in the form of Appellant’s testimony of the giving of immediate notice to his fore
Does there exist substantial evidence to support the referee’s finding of an accident at work and a causal relationship between the injuries sustained in that accident and Appellant’s present disability? We again must hold that the Board, although speaking to a review of competent evidence, invaded the exclusive province of the referee to make credibility determinations and to weigh the scales of the evidence. The determination critical to both these questions is whether there is competent evidence that Appellant, in fact, suífered a compensable accident on July 17, 1971. The referee found that on this date Appellant suffered an accidental injury which totally disabled him from July 18, 1971. This was suffi
Having determined that there was substantial evidence to sustain Appellant’s burden of proving an accident, we must also conclude that he has met this burden in proving a causal relationship between the accident and the disability. Where there is no obvious causal relationship between an employee’s injury and an alleged accident, unequivocal medical testimony is required to establish the necessary causal connection. Calcite Quarry
Appellant’s medical witness was a Dr. Sherman, a board certified specialist in physical medicine and rehabilitation. He testified that based upon a physical and neurological examination and x-rays of Appellant that he was of the opinion that Appellant suffered from degenerative disc disease at level L4, L5 with associated severe muscle spasms, that this condition rendered him totally disabled for his prior occupation as a heavy laborer,
It is immediately apparent that the fact that Dr. Sherman was not the treating physician and was retained long after the accident does not render his opinion incompetent. Although attending physicians are preferred as witnesses in workmen’s compensation cases, the fact of their treatment of a claimant versus the limitation of their involvement to a diagnosis for the purposes of litigation goes only to the weight of their
Finally, we find that Appellee has subrogation rights under Section 319, 77 P.S. §671, to the extent of $3,954 which was received by Appellant under Appellee’s nonoccupational “social insurance plan.” See U.S. Steel Corp. v. Workmen’s Compensation Appeal Board, 10 Pa. Commonwealth Ct. 67, 303 A.2d 200 (1973). Accordingly on this point, we affirm the Board.
And now, July 17, 1975, the order of the Workmen’s Compensation Appeal Board is reversed, and Bethlehem Steel Corporation is directed to pay to Stefan Czepurnyj compensation for total disability $60.00 per week commencing July 18, 1971 and continuing indefinitely into the future, together with interest at the rate of 6% per year on deferred installments, all within the limits of the Workmen’s Compensation Act. Bethlehem Steel Corporation is entitled to subrogation in the amount of $3,954.00.
. It is not disputed that notice to Appellant’s foreman, as found to have been given, would be sufficient to comply with the requirements of Section 313, 77 P.S. §633 (Supp. 1974-75), specifying, inter alia, that notice be given to the “immediate or other superior of the employe.” See Reed v. Glidden Co., 13 Pa. Commonwealth Ct. 343, 318 A. 2d 379 (1974); Allen v. Patterson-Emerson-Comstock, Inc., 180 Pa. Superior Ct. 286, 119 A. 2d 832 (1956).
. Appellee did not present evidence of the availability of other suitable work which the Appellant would he capable of performing.