Section, added Pub. L. 90–207, § 1(2)(A), Dec. 16, 1967, 81 Stat. 651; amended Pub. L. 90–603, § 1, Oct. 18, 1968, 82 Stat. 1187; Pub. L. 90–623, § 3(5), Oct. 22, 1968, 82 Stat. 1314; Pub. L. 93–274, § 1(3), May 6, 1974, 88 Stat. 95; Pub. L. 93–394, § 1, Aug. 29, 1974, 88 Stat. 792; Pub. L. 96–284, § 4(d)(1)–(3), June 28, 1980, 94 Stat. 591, 592; Pub. L. 96–513, title IV, § 414(b), title V, § 516(7), Dec. 12, 1980, 94 Stat. 2906, 2938, provided for continuation pay for dentists in the armed forces. See section 302b of this title.