RT Journal Article SR Electronic T1 The evolution of the Patient-Centered Outcomes Research Institute JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 157 OP 162 DO 10.1136/neurintsurg-2011-010114 VO 4 IS 3 A1 Laxmaiah Manchikanti A1 Standiford Helm A1 Joshua A Hirsch YR 2012 UL http://jnis.bmj.com/content/4/3/157.abstract AB