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This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Number of publications on Parkinson’s disease and select topics, 1960-2021. Based on Medline search of Medical Subject Headings (MeSH) and PubMed for keywords or phrases in publications for PD-related topics. Estimates vary depending on search terms and database coverage.