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Procerus Sign: Mechanism, Clinical Usefulness, and Controversies
This sign is observed in atypical parkinsonism mainly in Progressive Supranuclear Palsy. The exact mechanism of this sign is not clear but the contraction of the Corrugator Supercilii muscle is the most important factor for the generation of vertical forehead creases. Though the wrinkling of forehea...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Medknow Publications & Media Pvt Ltd
2018
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6073967/ https://www.ncbi.nlm.nih.gov/pubmed/30122846 http://dx.doi.org/10.4103/aian.AIAN_408_17 |