Bias in HD-ISS staging introduced by the FreeSurfer cross-sectional stream: Insights from the Huntington's Disease Young Adult Study (HD-YAS)
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Huntington's Disease Integrated Staging System (HD-ISS) stages are likely inclusion criteria in future clinical trials. Stage 1 volumetric cut-offs were derived using the FreeSurfer longitudinal stream (LG). However, trials will require cross-sectional stream... ...