Complete an article critique on the article Parkinsonism and occupational exposure to pesticides.

Parkinsonism and occupational exposure to pesticides

Your critique should include the following elements:
- Introduction: Include the title and author of the article, statement of the problem discussed, purpose, and hypothesis.
- Research Methods: What approach or methods were used in this study? Are they appropriate for the purposes of the study?
- Key results: Clearly and succinctly summarize the key results of the study.
- Statistical Significance: What is the statistical significance of this study? Are the statistical methods appropriate?

AMA format (cite all sources in the body of the paper)