發送短信 : Strong correlation between concentrations of tenofovir (TFV) emtricitabine (FTC) in hair and TFV diphosphate and FTC triphosphate in dried blood spots in the iPrEx open label extension: Implications for pre-exposure prophylaxis adherence monitoring

 __   _    __   __    _____     _____    _    _   
| || | ||  \ \\/ //  |__  //   |  ___|| | || | || 
| '--' ||   \ ` //     / //    | ||__   | || | || 
| .--. ||    | ||     / //__   | ||__   | \\_/ || 
|_|| |_||    |_||    /_____||  |_____||  \____//  
`-`  `-`     `-`'    `-----`   `-----`    `---`