[National distribution registry of individuals exposed to radiation effects due to the Chernobyl AES accident].

The paper deals with the problems in the case follow-up of the population exposed to radiation caused by the accident at the Chernobyl Atomic Power Station on the basis of the automated systems for collecting and processing medical information. A number of organizational, medical, technological, computational problems in setting up teh National Distribution Registry should be solved for a complete and long-term follow-up. A differential approach was proposed to the information provision of health care services and to the determination of a population size and principles of selecting the populations to be followed up in the Registry.