Ethics approval and Consent to participate
The study protocol was approved by the Ethical committee of Kashan University of Medical Sciences, Kashan, Iran (Reference Number: IR.KAUMS.REC.1395.50). The study was registered at Iranian Registry of Clinical Trials (IRCT.IR). (IRCT Id: IRCT2016122731611N1, Registration date: 18/03/2017). CONSORT recommendations and guidelines were followed. All participants signed the informed consent form prior to the study.