: clinicaltrials_resource:000382eadc1d621b7320becd458b706dhttp://bio2rdf.org/ Create a prefix for http://bio2rdf.org/ Hit Enter to save Double click to create a prefix | : clinicaltrials_vocabulary:time-framehttp://bio2rdf.org/ Create a prefix for http://bio2rdf.org/ Hit Enter to save Double click to create a prefix | 2 weeks before surgery (pre-operative) and hours after the surgery (post operative) |