APA (7th ed.) Citation

Helma Cotrim, Eduardo Mota, Livia Leite, Luciana Silva, & Luiz Lyra. (1992). A case-control study on the association of hepatitis B virus infection and hepatocellular carcinoma in Northeast Brazil. Universidade de São Paulo.

Chicago Style (17th ed.) Citation

Helma Cotrim, Eduardo Mota, Livia Leite, Luciana Silva, and Luiz Lyra. A Case-control Study on the Association of Hepatitis B Virus Infection and Hepatocellular Carcinoma in Northeast Brazil. Universidade de São Paulo, 1992.

MLA (9th ed.) Citation

Helma Cotrim, et al. A Case-control Study on the Association of Hepatitis B Virus Infection and Hepatocellular Carcinoma in Northeast Brazil. Universidade de São Paulo, 1992.

Warning: These citations may not always be 100% accurate.