H. J Wong, R. C Wu, M Caesar, H Abrams and D. Morra
Emergency Medicine Journal 27 ( 8 ): 593 - 598 , 2010
H Wong, R. C Wu, G Tomlinson, M Caesar, H Abrams, M. W Carter and D. Morra
Journal of Public Health 31 ( 4 ): 546 - 553 , 2009