<qa>  What date of study cohort entry will be defined by the prescription or dispensation date of theIn each jurisdiction, the investigators will assemble a study cohort that includes all patients newly prescribed a DOAC or warfarin from January 1, 2009 or the earliest date of data availability at each site to October 2, 2014 or 180 days before the last date of data availability at each site, if earlier, that had an incident diagnosis of VTE within the 30 days prior to the date of the prescription. The date of study cohort entry will be defined by the prescription for CPRD or dispensation for all other sites date of the newly prescribed DOAC or warfarin. Patients in the study cohort will be followed from the date of study cohort entry until an event defined below, censoring due to death or departure from the database, 3 months after cohort entry, or the end of the study period March 31, 2015, whichever occurs first. 