Amir Mirhaghi1, Michael Christ2. 1. Evidence-Based Caring Research Center, Department of Medical-Surgical Nursing, School of Nursing & Midwifery, Mashhad University of Medical Sciences, Chahrrahe-Doktorha, 9137913199, Mashhad, Khorasan Razavi, Iran. Electronic address: MirhaghiA@mums.ac.ir. 2. Universitätsklinik für Notfall- und Internistische Intensivmedizin, Paracelsus Medizinische Privatuniversität, Nürnberg, Klinikum Nürnberg, Germany. Electronic address: Michael.Christ@klinikum-nuernberg.de.