1. European Union (1997) Council Directive 97/43/Euratom. On health protection of individuals against the dangers of ionizing radiation in relation to medical exposure. Luxembourg
2. Staatsblad van het Koninkrijk der Nederlanden, Besluit Stralenbescherming, 16 juli 2001, Stb. 2001, 397
3. CT dose calculator ImpactDose, VAMP GmbH, Erlangen Germany. Internet: http://www.vamp-gmbh.de/software/impactdose.php
4. ImPACT (Imaging Performance Assessment of CT) group. CTdosimetry.xls spreadsheet can be downloaded from http://www.impactscan.org/ctdosimetry.htm . In this study, version 0.99e was used
5. Tapiovaara M, Lakkisto M, Servomaa A (1997) PCXMC: A PC-based Monte Carlo program for calculating patient doses in medical x-ray examinations, report STUK-A139, Helsinki: Finnish Centre for Radiation and Nuclear Safety. For information and demo version. see http://www.stuk.fi/pcxmc/