International Journal of Preventive Medicine2008-78021120120704Sleep Quality of Professional Firefighters10951100ENRaminMehrdadKhosroSadeghniiat HaghighiAmir HosseinNaseri EsfahaniMD, Resident of occupational medicine, Center for Research on Occupational Diseases, Tehran University of Medical Sciences, Tehran, Iran. occupationalmedicine@yahoo.com20120704-