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Correspondence

Major Potential Confounder Not Addressed

  • Jennifer Vines mail

    vinesj@ohsu.edu

    Affiliation: Oregon Health and Science University, Portland, Oregon, United States of America

    X
  • Published: January 31, 2006
  • DOI: 10.1371/journal.pmed.0030063

About the Author

Jennifer Vines
Oregon Health and Science University, Portland, Oregon, United States of America

Corresponding Author

Email: vinesj@ohsu.edu

Competing Interests

The author has declared that no competing interests exist.