Negotiating grey areas: an interview-based analysis of paramedic uncertainty and decision-making in cardiac arrest events. - Gardiner, Galina; Eli, Karin; Huxley, Caroline J.; Fothergill, Rachael; Perkins, Gavin D.; Smyth, Michael A.; Griffiths, Frances; Slowther, Anne-Marie (BMC Emergency Medicine, 2024)