RT Journal Article SR Electronic T1 Best timing of tranexamic acid administration for bleeding after trauma or childbirth remains to be established JF BMJ Evidence-Based Medicine JO BMJ EBM FD BMJ Publishing Group Ltd SP bmjebm-2019-111290 DO 10.1136/bmjebm-2019-111290 A1 Dacia DCA Henriquez A1 Johanna G van der Bom YR 2020 UL http://ebm.bmj.com/content/early/2020/02/13/bmjebm-2019-111290.abstract AB