Department of Midwifery, Biruni University Faculty of Health Sciences, Istanbul, Turkey (Dr Avci); and Department of Women's Health and Diseases Nursing, Istanbul University Florence Nightingale Faculty of Nursing, Istanbul, Turkey (Dr Oskay).

Correspondence: Nilgun Avci, PhD, Department of Midwifery, Biruni University Faculty of Health Sciences, Tenth years Street, Protocol Road, No: 45 34010 Topkapi/Istanbul ([email protected]).

The authors received a financial support which was supported by the Research Fund of Istanbul University (grant numbers 24201, 2012) and declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. This work was supported by the Research Fund of Istanbul University. Project no: 24201.