1.
Verma V, Uraiya D, Kumar A, Tripathi N, Dhoan P. A study of the correlation of non-motor symptoms of Parkinson’s disease and Parkinson plus syndrome with duration of the disease. Int J Med Res Rev [Internet]. 2017Aug.31 [cited 2024Nov.23];5(8):814-9. Available from: https://ijmrr.medresearch.in/index.php/ijmrr/article/view/913