MOHAMMAD ISLAM,

mehdi mirzaei alavijeh dph.d. candidate, department of health education, faculty of medical sciences, tarbiat modares university, tehran, iran. alireza heidarnia professor, department of health education, faculty of medical sciences, tarbiat modares university, tehran, iran. gerjo kok professor, department of work and social psychology school of psychology and neuroscience, maastricht university, maastricht, netherlands shamsedin niknamy associate professor, department of health education, faculty of medical sciences, tarbiat modares university, tehran, iran. mohammad ismail motlagh professor, department of pediatrics, faculty medicine, ahvaz jundishapur university of medical sciences, ahvaz, iran. mahnaz pishdar psychologist, institute of mehrvarzan- pishgiri

b. farzad m. mahdian e. s. mahmoodian a. saberi b. sadri