The Iranian Journal of Health Sciences is owned by Mazandaran University of Medical Sciences and co-published by the Negah Institute for Scientific Communication. Our philosophy in Negah journals is that all research is for the benefit of humankind, 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 transparently. That is why Negah provides free and open access to all of its research publications online. Therefore, the Iranian Journal of Health Sciences has supported all the publishing costs. Therefore, authors may publish their manuscripts, and audiences can download and share the articles freely.