Cite
HARVARD Citation
Parazzini, F. et al. (1992). Determinants of hepatitis B virus surface antigen positivity in adults attending sexually transmitted disease clinics in Italy.. Sexually transmitted infections. 68 (5), pp. 345-346. [Online].
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Parazzini, F. et al. (1992). Determinants of hepatitis B virus surface antigen positivity in adults attending sexually transmitted disease clinics in Italy.. Sexually transmitted infections. 68 (5), pp. 345-346. [Online].