Funding for this research was provided by:
University of California Davis Center for Healthcare Policy and Research (n/a)
Text and Data Mining valid from 2018-07-04
Received: 26 February 2018
Accepted: 20 April 2018
First Online: 4 July 2018
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board at the University of California Davis Medical Center (IRB net ID 400656). Whenever possible, written consent of the father of the child was obtained in addition to that of the mother.
: The authors declare that they have no competing interests.
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