jurisdiction, access to medical records, election of party status, withdrawal of citation, reasonableness of abatement time, Rule 60(b), N.C.G.S. § 95-137(b)(4), N.C.G.S. § 95-135(e), Review Board rule of procedure .0201, Review Board rule of procedure .0107(f), Review Board rule of procedure .0107(e), Review Board rule of procedure .0401, Board rule of procedure .0101(2), 29 CFR § 1910.20(e)(1)(i), 29 CFR § 1910.20(e)(1)(iii), 29 CFR § 1910.20(e)(1)(iv), 29 CFR § 1910.20(e)(12(ii)(A), 29 CFR § 1910.20(e)(2)(ii)(D), 29 CFR § 1910.20(c)(1), 29 CFR § 1910.20(c)(4)