A randomized, controlled pilot study of the effects of vitamin D supplementation on balance in Parkinson's disease: Does age matter?

• Amie L. Hiller ,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Writing – original draft

  * E-mail: peterami@ohsu.edu

  Affiliations VA Portland Healthcare System, Portland, OR, United States of America, Oregon Health and Sciences University, Portland, OR, United States of America

  http://orcid.org/0000-0001-5912-6941

  ⨯
• Charles F Murchison,

  Roles Data curation, Formal analysis, Methodology, Writing – review & editing

  Affiliation Oregon Health and Sciences University, Portland, OR, United States of America

  ⨯
• Brenna M Lobb,

  Roles Data curation, Project administration, Writing – review & editing

  Affiliation VA Portland Healthcare System, Portland, OR, United States of America

  ⨯
• Susan O’Connor,

  Roles Data curation, Project administration

  Affiliation VA Portland Healthcare System, Portland, OR, United States of America

  ⨯
• Morgan O’Connor,

  Roles Data curation, Investigation

  Affiliations Oregon Health and Sciences University, Portland, OR, United States of America, UC Davis, Sacramento, CA, United States of America

  ⨯
• Joseph F Quinn

  Roles Conceptualization, Supervision, Writing – review & editing

  Affiliations VA Portland Healthcare System, Portland, OR, United States of America, Oregon Health and Sciences University, Portland, OR, United States of America

  ⨯