This article was published with an incorrect ethical issue.

In the text (p.77, line 18)

This study complied with all of the principles of research ethics regulations which have been adopted by the Iranian Ministry of Health. Likewise, the study protocol was approved by the Institutional Review Board of Jahrom University of Medical Sciences. Although the IRB approved this study, the medical students of our own institution might be vulnerable subjects. However, ethical approval was obtained from the Ethics Committee and all of the participants gave their written informed consent.

The corrected form is as follows:

This study complied with all of the principles of research ethics regulations which are adopted by the Iranian Ministry of Health. Ethical approval for this study (references number: D/A/3755) was provided by the institutional review board (IRB) of Jahrom University of Medical Sciences, Jahrom, Iran (Chairperson M. Poorahmad; MD) on April 2010. Therefore, after obtaining the IRB approval and after getting participants informed consents, 60 female medical students were included in the study.