| AEs | adverse events |
| H&Y | Hoen & Yahr |
| DD | disease duration |
| LEDD | levodopa equivalent daily dose |
| NMS | non-motor symptoms |
| NMSS | Non-Motor Symptoms Scale |
| PD | Parkinson’s disease |
| PDQ-39SI | 39-item Parkinson’s Disease Quality of Life Questionnaire Summary Index |
| QoL | quality of life |
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