1. European Union. Council Directive 97/43 Euratom of 30 June 1997 on health protection of individuals against the dangers of ionizing radiation in relation to medical exposure, and repealing Directive 84/466 Euratom.Official J Eur Commun9.7. 1997;L180:22–27.
2. European Union. Council directive 84/466 Euratom of 3 September 1984 laying down the basic measures for the radiation protection of persons undergoing medical examination or treatment. Official J Eur Commun5.10.1984;L265:1–3.
3. Vaño E. Las exposiciones médicas en UNSCEAR 2000 y los datos del Comité español.Radioprotección2001;30:14–19 (in Spanish).
4. The status of Spain's dental practices following the European Union directive concerning radiological installations
5. Dose reduction of intraoral dental radiography in Spain