E. G Lee, J Nelson, P. J Hintz, G Joy, M. E Andrew and M. Harper
The Annals of Occupational Hygiene 54 ( 5 ): 545 - 556 , 2010
T Lee, S. W Kim, W. P Chisholm, J Slaven and M. Harper
The Annals of Occupational Hygiene 54 ( 6 ): 697 - 709 , 2010