| http://www.w3.org/ns/prov#value | - Breakthrough infections became more frequent in the second decade of life, suggesting an increase in exposure and self-limiting infection with hepatitis B.GlossaryAbbreviationHBVhepatitis B virusAcknowledgements and DisclosuresThe authors thank the volunteers and their parents/guardians who participated in the study, the study nurses and other staff members without whom this stu
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