@misc{misc13ba6496,
title   = {Seroprevalence of HIV, HBV, HCV and Treponema pallidum in crack users},
author = {Santos, V. A. and Seibel, S. D. and Saconi, R. A. and Finianos, A. B. and Burattini, Marcelo Nascimento and Massad, Eduardo and Carvalho, H. B.},
year = {2000},
booktitle   = {International Symposium on Viral Hepatitis and Liver Disease}
}