LETTER TO THE EDITOR Mutations in progranulin explain atypical phenotypes with variants in MAPT

Division of Regenerative Medicine, University of Manchester, Manchester, UK, Clinical Neuroscience Research Group, Division of Medicine and Neuroscience, Greater Manchester Neurosciences Centre, University of Manchester, Hope Hospital, Salford, UK, Department of Neuroscience, Mayo Clinic Jacksonville, Jacksonville, FL, Department of Neurology, Mayo Clinic, Rochester, Rochester, MN, USA, Garvan Institute of Medical Research, Darlinghurst, NSW 2010 Australia, Prince of Wales Medical Research Institute, Barker Street, Randwick, Sydney 2031, Australia, The University of New South Wales, Sydney 2052, Australia, Department of Pathology and Laboratory Medicine University of British Columbia and Vancouver Coastal Health, Vancouver, British Columbia, Canada and Disciplines of Medicine and Pathology, University of Sydney, Sydney, Australia