The most important nursing professional values: The perspectives of nurses who work at selected hospitals affiliated to Tehran University of Medical Sciences, Tehran, Iran - Mayelafshar, Mahnaz; Khoshnavay-Fomani, Fatemeh; Golpira, Reza; Bakhshandeh-Abkenar, Hooman; Momeni, Behzad; Khaleghparast, Shiva; Rezaei, Seyyed Ahmad; Sadr, Abbas; Vasheghani-Farahani, Ali; Rezaei, Farshid (Nursing Practice Today, 2016)