Table 3.
Distribution of grades
| Grades | Auto (clinician I) (%) | Auto (clinician II) (%) | Manual (%) |
| I | 25 | 35 | 45 |
| II | 65 | 55 | 45 |
| III | 10 | 10 | 10 |
| IV | 0 | 0 | 0 |
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