發送短信 : Predictors of incident and recurrent participation in the sale or delivery of drugs for profit amongst young methamphetamine users in Chiang Mai Province, Thailand, 2005-2006

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