%0 Journal Article %T Qualitative laboratory analysis for teh detaction of conventional drugs in herbal preparations supplied by healers in major towns of Ethiopia %A A Debella %A D Abebe %A K Mudie %A A Tadele %A A Gebreegziabher %J Ethiopian Journal of Health Development %D 2008 %I %U http://www.ajol.info/index.php/ejhd/article/view/10063