(a) EMG and NCV-studies and evaluations-shall be conducted only upon the referral of a physician, under section 9 of the act (63 P. S. § 1309). (b) A licensed physical therapist may not diagnose from the results of the tests, but may prepare a statement of his impression of the results of the test to be forwarded to the referring physician for his review and diagnosis. 49 Pa. Code § 40.51 The provisions of this § 40.51 adopted October 4, 1985, effective 10/5/1985, 15 Pa.B. 3513.