mohammadkarim bahadori health management research center, baqiyatallah university of medical sciences, tehran, ir iran ramin ravangard school of management and medical information sciences, shiraz university of medical sciences, shiraz, ir iran baratali asghari health management research center, baqiyatallah university of medical sciences, tehran, ir iran; health management research centre, baqiyatallah university of medical sciences, tehran, ir iran. tel: +98-2182482417, fax: +98-2188057022

محمدعلی مروتی شریف آباد mohammad ali morowatisharifabad احمد حائریان ahmad haerian-ardakani طاهره کمالی خواه tahereh kamalikhah عباسعلی دهقانی abbasali dehghani_tafti سمیرا حسن پور samira hassanpour نرگس رجائی بهبهانی narjes rajaee-behbehani فرشته رضائی

hajar shekarchizadeh 1. research center for caries prevention, community oral health department, school of dentistry, tehran university of medical sciences , tehran, iran ; 2. dept. of oral public health, university of helsinki , helsinki, finland. mohammad r khami 2. dept. of oral public health, university of helsinki , helsinki, finland ; 3. dental research center, community oral health department, school of dentistry, tehran university of medical sciences , tehran, iran. simin z mohebbi 1. research center for caries prevention, community oral health department, school of dentistry, tehran university of medical sciences , tehran, iran ; 2. dept. of oral public health, university of helsinki , helsinki, finland. hamed ekhtiari 4. translational neuroscience program, institute for cognitive science studies , iran ; 5. neurocognitive laboratory, iranian national center for addiction studies, tehran university of medical sciences , tehran, iran. jorma i virtanen 6. dept. of community dentistry, university of oulu , oulu, finland ; 7. dept. of public health, university of helsinki , helsinki, finland.

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