Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Specified Subgroup analysis of the primary outcome. NIHSS, National Institution of Health Stroke Scale. Center‐imaging assessment was performed among 299 in Ginkgolide group and 307 in placebo group who has DICOM information. According to NACET criteria, CTA or MRA imaging was classified into mild (0%–30%), moderate (30%–50%), and severe stenosis (>50%). The patients with 30%–50% stenosis had no events. Therefore, there is no RR for these specific patients
