| viagra → Causes → melanoma | 0.39 | |
| viagra → Causes → side effects | 0.36 | |
| viagra → Causes → dizziness | 0.31 | |
| viagra → Causes → fainting | 0.30 | |
| viagra → Causes → headache | 0.30 | |
| viagra → Causes → drowsiness | 0.29 | |
| viagra → Causes → infertility | 0.19 | |
| viagra → Causes → heart attack | 0.16 |