Table 2.
Distribution of patients according to age of the patients n (%)
| Age group | Number of patients | |
| 41-50 | 4 (20) | Mean age = 63 yr |
| 51-60 | 6 (30) | |
| 61-70 | 6 (30) | |
| 71-80 | 4 (20) | |
| Total | 20 |
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