Association of Parkinsonism or Parkinson Disease with Polypharmacy in the Year Preceding Diagnosis: A Nested Case-Control Study in South Korea

Recommended citation: Park, H. Y., Park, J. W., Sohn, H. S., & Kwon, J. W. (2017). Association of Parkinsonism or Parkinson Disease with Polypharmacy in the Year Preceding Diagnosis: A Nested Case-Control Study in South Korea. *Drug Safety*, 40(11), 1109–1118.
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