Nonmotor symptoms and Parkinson disease in United States farmers and spouses

• Srishti Shrestha,

  Roles Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

  http://orcid.org/0000-0002-2017-4521

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• Freya Kamel,

  Roles Data curation, Investigation, Methodology, Resources, Writing – review & editing

  Affiliation Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

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• David M. Umbach,

  Roles Formal analysis, Investigation, Methodology, Writing – review & editing

  Affiliation Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

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• Laura E. Beane Freeman,

  Roles Data curation, Funding acquisition, Resources, Writing – review & editing

  Affiliation Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America

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• Stella Koutros,

  Roles Data curation, Investigation, Resources, Writing – review & editing

  Affiliation Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America

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• Michael Alavanja,

  Roles Data curation, Funding acquisition, Investigation, Resources, Writing – review & editing

  Affiliation Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, United States of America

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• Dale P. Sandler,

  Roles Data curation, Investigation, Methodology, Project administration, Resources, Supervision, Writing – review & editing

  Affiliation Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America

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• Honglei Chen

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Writing – review & editing

  * E-mail: hchen@epi.msu.edu

  Affiliations Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America, Department of Epidemiology and Biostatistics, College of Human Medicine, Michigan State University, East Lansing, Michigan, United States of America

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