Role of Rilpivirine and Etravirine in Efavirenz and Nevirapine-Based Regimens Failure in a Resource-Limited Country: A Cross- Sectional Study. oleh Phairote Teeranaipong, Sunee Sirivichayakul, Suwanna Mekprasan, Pirapon June Ohata, Anchalee Avihingsanon, Kiat Ruxrungtham, Opass Putcharoen