BALTIMORE, Maryland, June 6 -- 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 on the following topics in its April 2020 edition:

* Effectiveness of 1, 2, and 3 Doses of Human Papillomavirus Vaccine Against High-Grade Cervical Lesions Positive for . . .

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