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From: Seroepidemiology of Helicobacter pylori and Hepatitis A Virus and the Mode of Transmission of Infection: A 9-Year Cohort Study in Rural Japan Clin Infect Dis. 2003;37(8):1067-1072. doi:10.1086/378276 Clin Infect Dis | © 2003 by the Infectious Diseases Society of America From: Seroepidemiology of Helicobacter pylori and Hepatitis A Virus and the Mode of Transmission of Infection: A 9-Year Cohort Study in Rural Japan Clin Infect Dis. 2003;37(8):1067-1072. doi:10.1086/378276 Clin Infect Dis | © 2003 by the Infectious Diseases Society of America From: Seroepidemiology of Helicobacter pylori and Hepatitis A Virus and the Mode of Transmission of Infection: A 9-Year Cohort Study in Rural Japan Clin Infect Dis. 2003;37(8):1067-1072. doi:10.1086/378276 Clin Infect Dis | © 2003 by the Infectious Diseases Society of America