Mehdi Tavassoli, Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol 47176-47745, Iran
Nasser Janmohammadi, Department of Orthopedics, Babol University of Medical Sciences, Babol 47176-47745, Iran
Akram Hosseini, Department of Pathology, Faculty of Medicine, Babol University of Medical Sciences, Babol 47176-47745, Iran
Soraya Khafri, Biostatistics and Epidemiology Department, Medicine Faculty, Babol University of Medical Sciences, Babol 47176-47745, Iran
Seyed Mokhtar Esmaeilnejad-Ganji, Clinical Research Development Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol 47176-47745, Iran
Author contributions: Tavassoli M and Esmaeilnejad-Ganji SM contributed in study design; Janmohammadi N, Hosseini A and Khafri S contributed in advising on study design; Tavassoli M and Esmaeilnejad-Ganji SM contributed to data collection; Khafri S contributed in data analysis; Tavassoli M and Hosseini A contributed in writing the draft; Esmaeilnejad-Ganji SM and Janmohammadi N contributed in manuscript revision; all authors approved the final version of the manuscript.
Supported by Vice Chancellor for Research and Technology of Babol University of Medical Sciences, No. 970568.
Institutional review board statement: This study was reviewed and approved by the Ethical Research Committee of Babol University of Medical Sciences (code: IR.MUBABOL.HRI.REC.1397.082).
Clinical trial registration statement: This trial was registered in the Iranian Registry of Clinical Trials with the number IRCT20180129038548N1.
Informed consent statement: All study participants provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All authors declare that they have no conflict of interest to declare.
CONSORT 2010 statement: The manuscript was prepared and revised according to the CONSORT 2010 Statement.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Seyed Mokhtar Esmaeilnejad-Ganji, MD, Associate Professor, Department of Orthopedics, Babol University of Medical Sciences, Ganjafrooz Street, Babol 47176-47745, Mazandaran, Iran. email@example.com
Telephone: +98-11-32199936 Fax: +98-11-32190181
Received: March 6, 2019
Peer-review started: March 8, 2019
First decision: April 16, 2019
Revised: May 10, 2019
Accepted: August 12, 2019
Article in press: August 13, 2019
Published online: September 18, 2019