| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | ritonavir | Western countries | Ritonavir is commonly used as a protease inhibitor in the treatment of HIV/AIDS. | 1 |
| 2 | ritonavir | Western countries | Ritonavir is a commonly used antiretroviral medication in the treatment of HIV/AIDS. | 1 |