1Department of Medical Education, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2Department of Internal Medicine, School of Medicine, Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
3Department of Nursing, Quchan Branch, Islamic Azad University, Quchan, Iran
4Geriatric Care Research Center, Department of Geriatric Nursing, School of Nursing, North Khorasan University of Medical Sciences, Bojnurd, Iran
5Department of Medical Education, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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