Hogg, K. ., Bahl, B. ., Latrous, M. ., Argentina, S. ., Thompson, J. ., Chatha, A. ., … Stiell, I. . (1969). Time trends in intracranial bleeding associated with direct oral anticoagulants: a 5-year cohort study. CMAJ Open, 3(4), E432-7. https://doi.org/10.9778/cmajo.20150037 (Original work published 1969)