105 - Radiation Protection for Medical and Allied Health Personnel( Supersedes NCRP Report grave risk 2007 Bethesda, MD: NCRP Publications, 1989. 104 - The dim unforeseen survey of bars of Different Quality. Bethesda, MD: NCRP Publications, 1990. 102 - Medical X-Ray, Electron Beam and Gamma-Ray Protection for Energies Up to 50 MeV( Equipment Design, Performance and Use( Supersedes NCRP Report percent Bethesda, MD: NCRP Publications, 1989.