Text this: Appointment reminders to increase uptake of HIV retesting by at-risk individuals: a randomized controlled study in Thailand

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