HD-CSF study mhtt and NfL dataset used for: F. B. Rodrigues, L. M. Byrne, R. Tortelli, E. B. Johnson, P. A. Wijeratne, M. Arridge, E. De Vita, N. Ghazaleh, R. Houghton, H. Furby, D. C. Alexander, S. J. Tabrizi, S. Schobel, R. I. Scahill, A. Heslegrave, H. Zetterberg, E. J. Wild, Longitudinal dynamics of mutant huntingtin and neurofilament light in Huntington's disease: the prospective HD-CSF study. medRxiv, (2020).