This article has been retracted: please see Elsevier policy on article withdrawal (https://www.elsevier.com/about/policies-and-standards/article-withdrawal).
This article has been retracted at the request of the Editor.
Post-publication an investigation conducted by Elsevier's Research Integrity & Publishing Ethics team on behalf of the journal has found that clinical trial registration related to this study occurred retrospectively after the research was completed. This breaches the journal's policy on clinical trials. The Editor has decided to retract the article.
The authors disagree with retraction and dispute the grounds for it.