This article has been retracted by the Editor-in-Chief. Following a reader report, a post-publication review found that the article's references do not support its content.
As a review article, its reliability depends on the accuracy of its sources, and its content is therefore unreliable and cannot be corrected. All thirteen authors were invited to respond. One author stated that he did not review or approve the final version prior to publication, the corresponding author could not be reached, and the remaining authors did not respond.
No competing interests declared.
