TY JOUR TI Slot-Radiography. New Possibilities of Radiation Diagnostics KW slot radiography KW digital radiography KW flat panel detector KW orthopedic surgery JO Medical Radiology and radiation safety AU Levitov, A.A. AU Doga, V.I. AU Belitskaya, G.S. PY 2019 IS 64 PB Federal Medical Biological Agency of Russia