Trends in dental radiography equipment and patient dose in the UK and Republic of Ireland : a review of data collected by the HPA Dental X-Ray Protection Services between 2008 amd 2011 for intra-oral and panoramic x-ray equipment /
Holroyd, J. R.
Health Protection Agency (Great Britain)
Didcot : Health Protection Agency,
c2013.
"HPA-CRCE-043".
Includes bibliographical references.