8. Williams DR, Holton JL, Strand C, Pittman A, de Silva R, Lees AJ, Revesz T. Pathological tau burden and distribution distinguishes progressive supranuclear palsy-parkinsonism from Richardson's syndrome. Brain. 2007 Jun;130(Pt 6):1566-76.
13. PSP-tau scores Williams DR, Holton JL, Strand C, Pittman A, de Silva R, Lees AJ, Revesz T. Pathological tau burden and distribution distinguishes progressive supranuclear palsy-parkinsonism from Richardson's syndrome. Brain. 2007 Jun;130(Pt 6):1566-76.
14. Distribution of tau pathology in PSP-tau score >7 Pink = Grade 1 Purple = Grade 2 Red = Grade 3 Brown = Grade 4 Williams DR, Holton JL, Strand C, Pittman A, de Silva R, Lees AJ, Revesz T. Pathological tau burden and distribution distinguishes progressive supranuclear palsy-parkinsonism from Richardson's syndrome. Brain. 2007 Jun;130(Pt 6):1566-76.