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Third staff (trainee) mean radiation doses (μGy) for group B per ERCP procedure. The range is in parenthesis.
| Third examiner | n | Mean |
|---|---|---|
| Chest | 24 | 72 (12.8–429) |
| Thyroid | 24 | 63 (16.1–382.1) |
| Forehead | 24 | 65 (13.4–317.8) |
| Hand | 24 | 162 (32.1–739.5) |
n: sample size.
