Ethical approval and protocol amendments {24, 25}
Ethical clearance for the conduction of this study was obtained from the Stanford University Institutional Review Board (IRB) on June 7th, 2022 (protocol #65160) and a modification to this protocol was approved on Feb. 6th, 2023. Any further modifications to the study protocol will be communicated to the Stanford IRB office by the study team in a timely manner. Changes to the study protocol will not take effect before approval by the Stanford IRB.