Multisite reproducibility and test-retest reliability of the T1w/T2w-ratio: A comparison of processing methods. - Stener Nerland; Kjetil N. Jørgensen; Wibeke Nordhøy; Ivan I. Maximov; Robin A. B. Bugge; Lars T. Westlye; Ole A. Andreassen; Oliver M. Geier; Ingrid Agartz (NeuroImage, 2021)