Measurements of radioactive material in the human body utilizing instrumentation that detects radiation emitted from the radioactive material in the body. ([https://www.iso.org/standard/40869.html ISO 28218]) Interacting biochemical processes which recognise and respond to DNA damage in cells, e.g., by causing the arrest of the reproductive cell cycle.([[ICRP Publication 103]], 2007)
''[[ICRP Glossary]] entry - June 2019''