The EffecTs of Amlodipine and other Blood PREssure Lowering Agents on Microvascular FuncTion in Small Vessel Diseases (TREAT-SVDs) trial: study protocol for a randomised crossover... by Kopczak, A, Stringer, MS, van den Brink, H, Kerkhofs, D, Blair, GW, van Dinther, M, Onkenhout, L, Thrippleton, MJ, Wartolowska, KA, Duering, M, Staals, J, Middeke, M, André, E, Norrving, B, Bousser, M-G, Mansmann, U, Rothwell, PM, Doubal, FN, van Oostenbrugge, R, Jan Biessels, G, Webb, AJS, Wardlaw, JM, Dichgans, M