“New Oral Anticoagulants and the Risk of Intracranial Hemorrhage: Meta-Analysis for Comparison of Randomized Trials of New Oral Anticoagulants in Atrial Fibrillation”. Portuguese Journal of Family Medicine and General Practice, vol. 30, no. 2, Apr. 2014, pp. 134-6, https://doi.org/10.32385/rpmgf.v30i2.11289.