International Journal of Medical Toxicology and Forensic Medicine is owned by Shahid Beheshti University of Medical Sciences and published by Negah Institute for Scientific Communication. Our philosophy in Negah journals is that all research is for the benefit of humankind and research is the product of an investment by society and therefore its fruits should be returned to all people without borders or discrimination, serving society universally and in a transparent fashion. That is why Negah provides online free and open access to all of its research publications. So, all the publishing costs have been supported by Shahid Beheshti University of Medical Sciences, therefore, authors may publish their manuscripts and audiences can download and share the articles, freely. This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.