Cita APA

Yan, Y., Zhang, W., Shen, Q., Cui, L., & Hua, X. (2008). Prevalence of four different subgenotypes of genotype 4 hepatitis E virus among swine in the Shanghai area of China. BioMed Central.

Citación estilo Chicago

Yan, Yijia, Wen Zhang, Quan Shen, Li Cui, y Xiuguo Hua. Prevalence of Four Different Subgenotypes of Genotype 4 Hepatitis E Virus Among Swine in the Shanghai Area of China. BioMed Central, 2008.

Cita MLA

Yan, Yijia, et al. Prevalence of Four Different Subgenotypes of Genotype 4 Hepatitis E Virus Among Swine in the Shanghai Area of China. BioMed Central, 2008.