About the Authors

Nancy P. Thorogood

Affiliation Department of Medical Genetics, University of British Columbia, Vancouver, Canada

Carolyn J. Brown

cbrown@interchange.ubc.ca

Affiliation Department of Medical Genetics, University of British Columbia, Vancouver, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NPT CJB. Performed the experiments: NPT CJB. Analyzed the data: NPT CJB. Wrote the paper: NPT CJB.