Global changes in the epidemiology of hepatitis A virus infections.
Nelson
Kenrad E
KE
Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA. kenelson@jhsph.edu
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D014943:Global Health; D006506:Hepatitis A / Q000453:epidemiology* / Q000503:physiopathology; D006801:Humans; D013997:Time Factors