PT - JOURNAL ARTICLE AU - Chen, Michael TI - Level 5 AID - 10.1136/neurintsurg-2016-012509 DP - 2016 Jul 01 TA - Journal of NeuroInterventional Surgery PG - 659--660 VI - 8 IP - 7 4099 - http://jnis.bmj.com/content/8/7/659.short 4100 - http://jnis.bmj.com/content/8/7/659.full SO - J NeuroIntervent Surg2016 Jul 01; 8