1. ARSAC, 1993. Notes for guidance on the administration of radioactive substances to persons for the purposes of diagnosis, treatment or research. Department of Health, London
2. Bahador, B., 1996. Trends in diagnostic imaging to 2000. FT Pharmaceutical and Healthcare Publishing, London
3. Erhebungen zur Strahlenexposition der Patienten bei der Röntgendiagnostik;Bernhardt;Z. Med. Phys.,1995
4. Editorial: Radiology guidelines;Chisholm;Clinical Radiology,1997
5. Council of the European Communities. 1996. Directive of 13 May 1996 laying down the basic safety standards for the protection of the general public and workers against the dangers of ionising radiation. Directive 96/29/Euratom