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DYS­TO­NIA: Abnor­mal mus­cle tone of one or more muscles
Source: National Insti­tute on Deaf­ness and Other Com­mu­ni­ca­tions Dis­or­der

• Move­ment Dis­or­ders Clinic
  MUHC/​CUSM. Canada. 

• Move­ment Dis­or­der Clinic Hand­book
  MUHC/​CUSM. 2007. Canada. 

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  DMRFC/​FRMDC. 2017. Canada. 

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  ¶Ù²â²õ­³Ù´Ç­²Ô¾±²¹ Med­ical Research Foun­da­tion. n.d. Canada. 

• 
  The Cana­dian Move­ment Dis­or­der Group. nd. Canada. 

• 
  DMRDC/​FDMDC. Canada. 

• 
  National Insti­tute on Neu­ro­log­i­cal Dis­or­ders and Stroke. 2019. USA.

• 
  Hec­tor A. Gonzalez-​Usigli, MD and Alberto Espay, MD. Merck Manuel /​Le Manuel Merck. 2020. USA.

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  ¶Ù²â²õ­³Ù´Ç­²Ô¾±²¹ Med­ical Research Foun­da­tion. n.d. USA.

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  National Insti­tute on Neu­ro­log­i­cal Dis­or­ders and Stroke. 2021. USA.

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  Benign Essen­tial Ble­pharospasm Research Foun­da­tion. USA.

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  ¶Ù²â²õ­³Ù´Ç­²Ô¾±²¹ Med­ical Research Foun­da­tion. USA.

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  ¶Ù²â²õ­³Ù´Ç­²Ô¾±²¹ Med­ical Research Foun­da­tion. n.d. USA.

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  Dystonia Medical Research Foundation. n.d. USA. 

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  International Parkinson and Movement Disorder Society (MDS). 2018. USA.

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  International Parkinson and Movement Disorder Society (MDS). 2018. USA.