%0 Journal Article %T Relationship between Freezing of Gait and Anxiety in Parkinson's Disease Patients: A Systemic Literature Review %A Hooman Ganjavi %A Ivan Witt %A Penny MacDonald %J Archive of "Parkinson's Disease". %D 2019 %R 10.1155/2019/6836082 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6681590/