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<xml><bibliography><APA>Roongtawan Supabhol. (1996) Effect of pussive smooking to the cardiovascular system. &lt;i&gt;Journal of Medicine and Health Sciences&lt;/i&gt;, &lt;i&gt;3&lt;/i&gt;(2), 86-94.</APA><Chicago>Roongtawan Supabhol. "Effect of pussive smooking to the cardiovascular system". Journal of Medicine and Health Sciences  3 (1996):86-94.</Chicago><MLA>Roongtawan Supabhol. Effect of pussive smooking to the cardiovascular system. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 1996.</MLA></bibliography></xml>
