Genetic Factors Affect Codeine's Work as Painkiller

By lexifer · Jun 8, 2008 · Updated Jun 8, 2008 ·
  1. lexifer
    http://news.yahoo.com/s/hsn/2008060...spainkiller;_ylt=AgwVbekFHZE.xzZbKv0DMICCSbYF

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