β-blocker ingestion: An evidence-based consensus guideline for out-of-hospital management

Paul M. Wax, Andrew R. Erdman, Peter A. Chyka, Daniel C. Keyes, E. Martin Caravati, Lisa Booze, Gwenn Christianson, Alan Woolf, Kent R. Olson, Anthony S. Manoguerra, Elizabeth J. Scharman, William G. Troutman