This paper is in the following e-collection/theme issue:

JMIR Theme Issue: COVID-19 Special Issue (2391)

Published on in Vol 23, No 2 (2021): February

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/20546, first published .
Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Estimated Sleep Duration Before and During the COVID-19 Pandemic in Major Metropolitan Areas on Different Continents: Observational Study of Smartphone App Data

Authors of this article:

Rebecca Robbins1, 2 Author Orcid Image ;   Mahmoud Affouf3 Author Orcid Image ;   Matthew D Weaver1, 2 Author Orcid Image ;   Mark É Czeisler4, 5 Author Orcid Image ;   Laura K Barger1, 2 Author Orcid Image ;   Stuart F Quan1, 2 Author Orcid Image ;   Charles A Czeisler1, 2 Author Orcid Image
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