Vardas, E., Giuliano, A. R., Goldstone, S., Palefsky, J. M., Moreira, E. D., Penny, M. E., . . . Guris, D. (2011). External Genital Human Papillomavirus Prevalence and Associated Factors Among Heterosexual Men on 5 Continents. Oxford University Press.
Chicago-tyylinen lähdeviittausVardas, Eftyhia, et al. External Genital Human Papillomavirus Prevalence and Associated Factors Among Heterosexual Men On 5 Continents. Oxford University Press, 2011.
MLA-viiteVardas, Eftyhia, et al. External Genital Human Papillomavirus Prevalence and Associated Factors Among Heterosexual Men On 5 Continents. Oxford University Press, 2011.
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