<style face="normal" font="default" size="100%">Incidence of hepatitis B surface antigen and antibody in patients with liver diseases, blood donors and leprosy patients--a preliminary report.</style>

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0<style face="normal" font="default" size="100%">Incidence of hepatitis B surface antigen and antibody in patients with liver diseases, blood donors and leprosy patients--a preliminary report.</style>