Levels of Urgency for Orthopaedic Procedures: Reliability and Adoption of a Consensus-driven Classification.
Edward Y ChengDavid M MatsonKyle D MorgensternJulie AgelPaul HoogervorstPublished in: The Journal of the American Academy of Orthopaedic Surgeons (2021)
Reliability study: Level I (Evid Based Spine Care J 2014 October;5(2):166. doi: 10.1055/s-0034-1394106).