أرسل هذا في رسالة قصيرة: Assessment of Contamination and Misclassification Biases in a Randomized Controlled Trial of a Social Network Peer Education Intervention to Reduce HIV risk Behaviors Among Drug Users and Risk Partners in Philadelphia, PA and Chiang Mai, Thailand

  _____      ___     ______      ___    __    __  
 /  ___||   / _ \\  |      \\   / _ \\  \ \\ / // 
| // __    | / \ || |  --  //  / //\ \\  \ \/ //  
| \\_\ ||  | \_/ || |  --  \\ |  ___  ||  \  //   
 \____//    \___//  |______// |_||  |_||   \//    
  `---`     `---`   `------`  `-`   `-`     `