| Patients’ information | Number of cases (%) |
| Gender |
|
| Male | 12 (60) |
| Female | 8 (40) |
| Age (years) |
|
| 50 - 65 | 9 (45) |
| 66 - 75 | 8 (40) |
| 76 - 85 | 3 (15) |
| Body weight(Kg) |
|
| 55 - 65 | 6 (30) |
| 66 - 75 | 12 (60) |
| 75 - 85 | 2 (10) |