A nested case-control study Mahyar Etminan, PharmD, Ali Samii, MD and James M. Brophy, MD, PhD, FRCPC From the Center for Clinical Epidemiology and Evaluation (M.E.), Vancouver Coastal Health Research Institute, Canada; Department of Medicine (M.E.), University of British Columbia, Vancouver, Canada; Department of Neurology (A.S.), University of Washington, Seattle, WA; and Department of Medicine

A randomized controlled trial Karl B. Alstadhaug, MD, PhD, Francis Odeh, MD, PhD, Rolf Salvesen, MD, PhD and Svein I. Bekkelund, MD, PhD From the Department of Neurology (K.B.A., F.O., R.S.), Nordlandssykehuset Bodø, Bodø; Department of Neurology (S.I.B.), University Hospital of North Norway, Tromsø; and Institute of Clinical Medicine (K.B.A., R.S., S.I.B.), University of Tromsø, Tromsø, Norway. A

A.H. Ford, MD, L. Flicker, MD, H. Alfonso, PhD, J. Thomas, RN, R. Clarnette, MD, R. Martins, PhD and O.P. Almeida, MD From the Centre for Medical Research & School of Psychiatry and Clinical Neurosciences (A.H.F., H.A., R.M., O.P.A.) and the Centre for Medical Research & School of Medicine and Pharmacology (L.F., J.T.), WA Centre for Health & Ageing, University of Western Australia, Perth, WA; and

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PATH56 MRI correlates of vascular cognitive impairment: contribution of microbleeds, white matter changes and infarcts in a large hospital-based cross-sectional study S Gregoire, L Cipolotti, N Sokolovsky, M M Brown, T A Yousry, D J Werring, H R Jaeger, K Smith, K Oaksford, G SchefflerUCL Institute of Neurology, London, UKCorrespondence to s.gregoire{at}ion.ucl.ac.uk Background The mechanisms unde

B Ghosh1,2,3, J B Rowe1,2,3, R H S Carpenter1,2,3, A J Calder1,2,3, P V Peers1,2,3, A D Lawrence1,2,3, J R Hodges1,2,31MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK2Centre for Clinical Neuroscience and MRC Clinical Sciences Centre, Cardiff University, Cardiff, UK3Prince of Wales Medical Research Institute, Sydney, New South Wales, AustraliaCorrespondence to bcpg1{at

POS07 Reduced ADAMTS-13 activity levels in partial anterior circulation transient ischaemic attack patients compared to nonstroke controls G A Frentzou, C Kamara, K A Harkness, G Haddock, C Doyle, M Taylor, G S Venables, M N Woodroofe, A K Cross, M RandallSheffield Hallam University, Sheffield, UKCorrespondence to G.Frentzou{at}shu.ac.uk AbstractClarification of the pathophysiological mechanisms o