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. 2013 Jul 30;13:22. doi: 10.1186/1471-2342-13-22

Table 1.

2008 Swiss annual frequency and dose data for CT and all X-ray modalities (rounded values)

  CT All X-ray modalities
Number of examinations (in thousands)
780
13’000
Number of examinations/1000 population
100
1700
Collective dose (man.Sv)
6150
9100
Effective dose/caput (mSv) 0.8 1.2