APA

Puro V., Narciso P., Girardi E., Antonelli L., Zaccarelli M. & Visco G. (19910507). Male-to-female transmission of human immunodeficiency virus infection by oro-genital sex. : European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology.

Chicago

Puro V, Narciso P, Girardi E, Antonelli L, Zaccarelli M and Visco G. 19910507. Male-to-female transmission of human immunodeficiency virus infection by oro-genital sex. : European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology.

Harvard

Puro V., Narciso P., Girardi E., Antonelli L., Zaccarelli M. and Visco G. (19910507). Male-to-female transmission of human immunodeficiency virus infection by oro-genital sex. : European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology.

MLA

Puro V, Narciso P, Girardi E, Antonelli L, Zaccarelli M and Visco G. Male-to-female transmission of human immunodeficiency virus infection by oro-genital sex. : European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology. 19910507.