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The American Journal of Emergency Medicine > 2018 > 36 > 4 > 577-582
International Journal of Pediatric Otorhinolaryngology > 2015 > 79 > 6 > 912-920
Resuscitation > 2011 > 82 > 7 > 902-907
IEEE Transactions on Education > 2009 > 52 > 4 > 491 - 502