Principal Investigators Toggle Show only specific programs/branches Entire Division Office of the Director Toggle Trans-Divisional Research Program Connect Coordinating Center Data Science & Engineering Research Group Garcia-Closas Research Group Biostatistics Branch Clinical Genetics Branch Clinical Epidemiology Unit Infections and Immunoepidemiology Branch Integrative Tumor Epidemiology Branch Laboratory of Translational Genomics Metabolic Epidemiology Branch Occupational and Environmental Epidemiology Branch Radiation Epidemiology Branch Cancer Survivorship Research Unit (CSRU) Dosimetry Unit Toggle Cancer Genomics Research (CGR) Laboratory Cancer Genomics Research (CGR) Laboratory Dosimetry Unit (DU)L Lee, Choonsik, Ph.D.Organ radiation dose estimations for diagnostic and therapeutic medical procedures using computer simulations of human anatomy and radiation-generating machines.