Supplemental material, sj-zip-1-nnr-10.1177_1545968319886477 for Standardized Measurement of Quality of Upper Limb Movement After Stroke: Consensus-Based Core Recommendations From the Second Stroke Recovery and Rehabilitation Roundtable by G. Kwakkel, E. E. H. van Wegen, J. H. Burridge, C. J. Winstein, L. E. H. van Dokkum, M. Alt Murphy, M. F. Levin, J. W. Krakauer, Catherine E Lang, Thierry Keller, Tomoko Kitago, Nurdiana Nordin, Valery Pomeroy, Janne M. Veerbeek and Frederike van Wijck in Neurorehabilitation and Neural Repair