Letter: Increasing prevalence of subtype y of HBs AG in southwest Germany.
D002353:Carrier State / Q000382:microbiology; D005860:Germany, West; D006509:Hepatitis B / Q000453:epidemiology* / Q000382:microbiology; D006511:Hepatitis B Antigens / Q000145:classification / Q000302:isolation & purification*; D006801:Humans
D006511:Hepatitis B Antigens