| Item | Difficulty | Needed Support |
| Organize the presentation | 98 (42.6) | 81 (35.2) |
| Lack of time to research | 83 (36.1) | 70 (30.4) |
| Discussion in the presentation | 77 (33.5) | 73 (31.7) |
| Statistical analysis | 59 (25.7) | 91 (39.6) |
| Preparation of abstract | 46 (20.0) | 49 (21.3) |
| Shortage of human resources | 34 (14.8) | 41 (17.8) |
| Design the study | 26 (11.3) | 43 (18.7) |
| Funds | 8 (3.5) | 15 (6.5) |
| English expression | 7 (3.0) | 15 (6.5) |
| Others | 24 (10.4) | 19 (8.3) |