SciELO - Scientific Electronic Library Online

SciELO - Scientific Electronic Library Online

Article References

MYER, Landon. The limits of observational epidemiology: hormonal contraception and women's risk of HIV infection. S. Afr. j. sci. [online]. 2012, vol.108, n.7-8, pp. 5-7. ISSN 0038-2353.

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