1. ... plastic phantoms filled with sodium chloride solution are used for measuring radioactivity Subject(s): Equipment and SuppliesRadiationWorld Health Organization
2. Promieniowanie Publication: [Poland] : PZH, 1968 Subject(s): RadiationAnniversaries and Special EventsGlobal HealthRadiation Injuries -- prevention & control
3. [Public Health Service officer Gail Schmidt checking the level of contamination on the exterior of a building used by radium source manufacturer and importer in New York] Publication: [1966] Subject(s): RadiationRadiumUnited States. Public Health Service.