title: Welcome to the Fiftieth Annual Meeting of the NCRP: achievements of the past 50 years and addressing the needs of the future.
authors.affiliation: *National Council on Radiation Protection and Measurements, 7910 Woodmont Avenue, Suite 400, Bethesda, MD 20814-3095.
authors.forename: John D
authors.initials: JD
authors.lastname: Boice
mesh_terms: D003142:Communication; D003226:Congresses as Topic; D006077:Government Agencies; D006283:Health Physics / Q000266:history / Q000458:organization & administration*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D011835:Radiation Protection / Q000266:history / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D012306:Risk; D014481:United States