J Nurs Res 2014 Dec;22(4):259-67
1MScN, Research Center for Social Determinants of Health, Semnan University of Medical Sciences, Semnan, Iran 2PhD, Associate Professor, Elderly Care Research Center, Shahed University, Tehran, Iran 3PhD, Associate Professor, Elderly Care Research Center, Shahed University, Tehran, Iran 4PhD, Professor, Mental Health Research Group, Health Metrics Research Centre, Iranian Institute for Health Sciences Research, ACECR, Tehran, Iran 5PhD, Associate Professor, Faculty of Paramedical Sciences, Department of Biostatistics, Shahid Beheshti University of Medical Sciences, Tehran, Iran 6PhD, MD, Assistant Professor, Research Center for Social Determinants of Health, Department of Community Medicine, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran 7PhD, Honorary Research Associate, College of Human and Health Sciences, Swansea University, Wales, United Kingdom.