Article History
Received: 24 May 2019
Revised: 31 January 2020
Accepted: 4 February 2020
First Online: 21 February 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The University of California, San Francisco (UCSF) institutional review board (IRB) approved the OAI study protocol. (Approval Number: 10-00532 Approval Date: 2/24/2017). Informed consent was obtained from all participants. All participants received a financial incentive for their participation. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (including the name of committee + reference number) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.