Received: 28 September 2018
Accepted: 22 April 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: The ethical committee of Mazandaran University of Medical Sciences approved the study protocol (Ethics Code; IR.MAZUMS.REC.94–1196). All patients received verbal and printed information, and all provided written consent before entry into this study.
: “Not applicable”.
: The authors of present study declare that they have no conflict of interest. Seyed Jalal Hosseinimehr as an author of this manuscript is a member of editorial board of BMC complementary and alternative medicine has no conflict of interest to this manuscript that was submitted to this journal.