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Disease Severity and Progression in Progressive Supranuclear Palsy and Multiple System Atrophy: Validation of the NNIPPS – PARKINSON PLUS SCALE
- Christine A. M. Payan,
- François Viallet,
- Bernhard G. Landwehrmeyer,
- Anne-Marie Bonnet,
- Michel Borg,
- Franck Durif,
- Lucette Lacomblez,
- Frédéric Bloch,
- Marc Verny,
- Jacques Fermanian
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- Published: August 4, 2011
- https://doi.org/10.1371/journal.pone.0022293