Davis, J., Harrington, N., Fagan, B., Henry, B., & Savoy, M. (1969). The Accuracy of Trigger Tools to Detect Preventable Adverse Events in Primary Care: A Systematic Review. Journal of the American Board of Family Medicine : JABFM, 31(1), 113-125. https://doi.org/10.3122/jabfm.2018.01.170247 (Original work published 1969)