@misc{miscffe13179,
title   = {Human immunodeficiency virus type 1 subtypes in São Paulo state},
author = {Covas, Dimas Tadeu and Fagundes, M. C. K. and Watanabe, M. A. E. and Kashima, Simone},
year = {1999},
booktitle   = {Congresso Nacional do Colégio Brasileiro de Hematologia}
}