[Virologic study of several hepatitis B infections in rural areas of Beijing during recent years].
Jiang
Y T
YT
D000328:Adult; D002681:China; D005260:Female; D006509:Hepatitis B / Q000382:microbiology* / Q000635:transmission; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012424:Rural Population
D006514:Hepatitis B Surface Antigens