[The investigation of BK virus infection among pregnant women in Beijing].
Xiao
J
J
D000914:Antibodies, Viral / Q000032:analysis; D001739:BK Virus / Q000276:immunology; D002681:China; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology*; D014412:Tumor Virus Infections / Q000453:epidemiology*
D000914:Antibodies, Viral