Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla, CA.

Address correspondence to: Aladdin H. Shadyab, PhD, Division of Epidemiology, Department of Family Medicine and Public Health; University of California, San Diego School of Medicine, 9500 Gilman Drive #0725, La Jolla, CA 92093. E-mail: [email protected]

Received 5 July, 2020

Revised 6 July, 2020

Accepted 6 July, 2020

Funding/support: None reported.

Financial disclosure/conflicts of interest: None reported.