alireza ghorbanibirgani nursing care research center in chronic disease, ahvaz jundishapur university of medical sciences, ahvaz, ir iran masoud fallahi-khoshknab phd, associate professor of nursing department, university of social welfare and rehabilitation sciences (uswr), tehran, ir iran; associate professor of nursing department, university of social welfare and rehabilitation sciences (uswr), tehran, ir iran. tel/fax: +98-2122180036 kourosh zarea nursing care research center in chronic disease, ahvaz jundishapur university of medical sciences, ahvaz, ir iran heidarali abedi department of nursing, nursing and midwifery school, khorasgan branch, islamic azad university, khorasgan, ir iran

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