1. School of Nursing and Midwifery, Golestan University of Medical Sciences, Gorgan, Iran
2. Education Development Center, Golestan University of Medical Sciences, Gorgan, Iran
3. Department of Biostatistics, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Nursing Research Center, Golestan University of Medical Sciences, Gorgan, Iran
6. Student Research Committee, Golestan University of Medical Sciences, Gorgan, Iran