assessment of relationship between self-efficacy and self- care in copd patients abedi ha [1] , salimi s [2] , feizi a [3] , safari vaghasloo s [4] * received: 17 sep, 2011 accepted: 27 nov, 2011 abstract background & aims : given the importance of the copd and role of different factors in self-care behaviors of copd patients, this study have been conducted to determine the relati...