About the Authors
- Jun Ma
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Affiliation Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, California, United States of America
- Niraj L Sehgal
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Affiliation Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, California, United States of America
- John Z Ayanian
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Affiliation Division of General Medicine, Brigham and Women's Hospital and Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, United States of America
- Randall S Stafford
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*To whom correspondence should be addressed. E-mail: rstafford@stanford.edu
Affiliation Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, California, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
JM, NLS, and RSS designed the study. JM, NLS, and RSS analyzed the data. JM, JZA, NLS, and RSS contributed to writing the paper.