Cardiology Division, Veterans Affairs Palo Alto Health Care System, Palo Alto, California (Dr Myers, Chan, Kamil-Rosenberg, Waheed, and Mathew, Ms Tan, and Messrs Bail and Zell); and Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, and Healthy Living for Pandemic Event Protection (HL-PIVOT) Network, Chicago, Illinois (Dr Myers).

Correspondence: Jonathan Myers, PhD, VA Palo Alto Health Care System, Cardiology 111C, 3801 Miranda Ave, Palo Alto, CA 94304 ([email protected]).

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The authors declare no conflicts of interest.