A natural experiment of state-level physical activity and screen-time policy changes early childhood education (ECE) centers and child physical activity

Title
A natural experiment of state-level physical activity and screen-time policy changes early childhood education (ECE) centers and child physical activity
Authors
Keywords
-
Journal
BMC PUBLIC HEALTH
Volume 20, Issue 1, Pages -
Publisher
Springer Science and Business Media LLC
Online
2020-03-24
DOI
10.1186/s12889-020-08533-8

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