The Editor-in-Chief has retracted this article. The article was submitted to be part of a guest-edited issue. An investigation by the publisher has found that the editorial handling and peer review process for this article was compromised. Based on the investigation's findings the Editor-in-Chief therefore no longer has confidence in the results and conclusions of this article.

Z. Moravvej and M.R. Rahimpour disagree with this retraction. F. Farshchi Tabrizi has not responded to correspondence regarding this retraction.

The online version of this article contains the full text of the retracted article as Supplementary Information.