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APA Citation
Barrero, L. H., Katz, J. N., Perry, M. J., Krishnan, R., Ware, J. H., & Dennerlein, J. T. (2009). work pattern causes bias in self-reported activity duration: a randomised study of mechanisms and implications for exposure assessment and epidemiology. Occupational and environmental medicine, 66(1), 38–44. http://access.bl.uk/ark:/81055/vdc_100137791673.0x000018