1. Nursing and Midwifery School; Tehran University of Medical Sciences; Tehran Iran
2. Nursing and Midwifery Care Research Center; Isfahan University of Medical Sciences; Isfahan Iran
3. Psychiatry and Psychology Research Center; Tehran University of Medical Sciences; Tehran Iran
4. Biostatistics Department; Tarbiat Modares University; Tehran Iran
5. Research Centre for Nursing and Midwifery Practice, Medical School; Australian National University Woden; Australian Capital Territory Australia