Fishbone diagram of the cause-and-effect analysis Fishbone diagram of the cause-and-effect analysis. IO, intraosseous; IV, intravenous; UAH ED, University of Alberta Hospital Emergency Department. Fishbone diagram of the cause-and-effect analysis. IO, intraosseous; IV, intravenous; UAH ED, University of Alberta Hospital Emergency Department. Kevin Verhoeff et al. BMJ Open Qual 2018;7:e000090 © Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/