Kazronian, S., Zakerian, S.A., Mortezapour, A., Nasl Saraji, G. and Hosseini, M. 2019. Influence of 24-Hours Shift Work System on Occupational Stress among Iranian Firefighters. Archives of Advances in Biosciences. 10, 4 (Dec. 2019), 31–40. DOI:https://doi.org/10.22037/aab.v10i4.13398.