1 Division of Critical Care Medicine, Seattle Children's Hospital, University of Washington, Seattle, Wash; Division of Cardiology, Seattle Children's Hospital, University of Washington, Seattle, Wash.
2 Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, Mass.
3 Division of Cardiology, Seattle Children's Hospital, University of Washington, Seattle, Wash; Center of Health Equity, Diversity, and Inclusion, University of Washington School of Medicine, Seattle, Wash.