Woodruff, Katie http://orcid.org/0000-0003-1413-6948
Biggs, M. Antonia
Gould, Heather
Foster, Diana Greene
Funding for this research was provided by:
Wallace Foundation
David and Lucile Packard Foundation
William and Flora Hewlett Foundation
an anonymous foundation
Article History
First Online: 21 March 2018
Compliance with Ethical Standards
: All the research described in this study received ethical approval from the University of California, San Francisco Committee of Human Research, and all procedures were performed in accordance with the ethical standards of this committee.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.