TY JOUR TI Comparative Analysis of Approaches to Regulation and Monitoring of Workers for Internal Radiation Exposure KW committed effective dose KW annual equivalent dose on critical organ KW regulation KW radiation safety standards KW monitoring of workers for internal radiation exposure KW biokinetic model KW dosimetric model JO Medical Radiology and radiation safety AU Molokanov, A.A. AU Kukhta, B.A. AU Maksimova, E.Y. PY 2021 IS 66 PB Federal Medical Biological Agency of Russia