BALTIMORE, Maryland, Feb. 8 -- The American Journal of Epidemiology, a peer-reviewed journal from the Johns Hopkins University Bloomberg School of Public Health that says it publishes research findings, opinion pieces and methodological developments in the field of epidemiologic research, published research articles, including the following topics, in its February 2021 edition:

Study Design:

* The Chile Biliary Longitudinal Study: A Gallstone Cohort

Origina . . .

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