Frequency of Australia antigen in volunteer blood-donors in Miyagi prefecture.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001782:Blood Donors; D005260:Female; D006511:Hepatitis B Antigens; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
D006511:Hepatitis B Antigens