Risk Factors for tuberculosis among human immunodeficiency virus-infected persons. A case-control study in Belo Horizonte, Minas Gerais, Brazil (1985-1996) Leia mais sobre Risk Factors for tuberculosis among human immunodeficiency virus-infected persons. A case-control study in Belo Horizonte, Minas Gerais, Brazil (1985-1996)
Alteration in the endogenous intestinal flora of swiss webster mice by experimental Angiostrongylus costaricensis infection Leia mais sobre Alteration in the endogenous intestinal flora of swiss webster mice by experimental Angiostrongylus costaricensis infection