1976—Pub. L. 94–278, title IV, § 403(b)(3), Apr. 22, 1976, 90 Stat. 409, substituted “GENETIC DISEASES” for “GENETIC BLOOD DISORDERS” and inserted “HEMOPHILIA PROGRAMS” in subchapter heading.

1974—Pub. L. 93–270, § 3(b), Apr. 22, 1974, 88 Stat. 92, inserted “SUDDEN INFANT DEATH SYNDROME” in subchapter heading.

1972—Pub. L. 92–414, § 4(1), Aug. 29, 1972, 86 Stat. 652, substituted “GENETIC BLOOD DISORDERS” for “SICKLE CELL ANEMIA PROGRAM” as subchapter heading and designated former subchapter heading as part A, substituting “Programs” for “Program”.