title: [Characteristics of roentgenography on the RUM-20 apparatus].
mesh_terms: D004064:Digestive System / Q000000981:diagnostic imaging; D006801:Humans; D011829:Radiation Dosage; D011859:Radiography / Q000295:instrumentation*; D012137:Respiratory System / Q000000981:diagnostic imaging; D014586:USSR; D014963:X-Ray Intensifying Screens
vernacular_title: Osobennosti rentgenografii na apparate RUM-20.