1. Professor (sultan@gazi.edu.tr), Faculty of Health Sciences, Nursing Department, Gazi University Emek Bişkek Cad., 6. Sok, Gazi Üniversitesi No. 2, 06490 Ankara Turkey.
2. Associate Professor (hulyakulak@yahoo.com), Faculty of Health Sciences, Nursing Department Zonguldak Bülent Ecevit University Zonguldak, 67600 Turkey.