References
Canadian Centre for Occupational Health and Safety. (2009). Hazard and risk. Retrieved October 17, 2010 from http://www.ccohs.ca/oshanswers/hsprograms/hazard_r...
Canadian Centre for Occupational Health and Safety. (2007). Rotational shiftwork.
Retrieved October 17, 2010 from http://www.ccohs.ca/oshanswers/ergonomics/shiftwrk...
Government of Alberta. (2010). Healthy U: Shift work – Getting enough sleep and physical activity. Retrieved October 17, 2010 from http://www.healthyalberta.com/HealthyPlaces/685.ht...
Occupational Health Clinics for Ontario Workers, Inc. (2005). Shiftwork: Health effects and solutions. Retrieved October 17, 2010 from http://www.ohcow.on.ca/resources/handbooks/shiftwo...