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Grading System for participant ease in marker localisation
| Grade | Description |
|---|---|
| 0–Not visualized | The participant did not localise a marker in one minute |
| 1–Unsure of localisation | The participant was unsure if the targeted finding represented the marker |
| 2–Localised with difficulty | The participant had difficulty localising the finding but was confident it was the marker |
| 3–Localised easily | The participant easily localised the finding and was confident it was the marker |
