Stenting for symptomatic vertebral artery stenosis: a preplanned pooled individual patient data analysis. - Markus, Hugh S; Harshfield, Eric L; Compter, Annette; Kuker, Wilhelm; Kappelle, L Jaap; Clifton, Andrew; van der Worp, H Bart; Rothwell, Peter; Algra, Ale; Vertebral Stenosis Trialists' Collaboration (Lancet Neurology, 2019)