1. Faculty of Nursing and Midwifery of Amol; Mazandaran University of Medical Sciences; Sari Iran
2. Biostatistics Unit, Yong Loo Lin School of Medicine; National University Health System; Singapore
3. Research Center for Modeling in Health; Kerman University of Medical Sciences; Kerman Iran
4. School of Allied Medical Sciences; Qazvin university of Medical Sciences; Qazvin Iran
5. Faculty of Nursing and midwifery; Qazvin University of Medical Sciences; Qazvin Iran