Liu, J., Cong, Y., Yin, R., Ding, C., Yu, S., Liu, X., . . . Ding, Z. (2014). The deletion of an extra six nucleotides in the 5′ -untranslated region of the nucleoprotein gene of Newcastle disease virus NA-1 decreases virulence. BMC Vet Res.

Liu, Jiaxu, Yanlong Cong, Renfu Yin, Chan Ding, Shengqing Yu, Xiufan Liu, Chunfeng Wang, and Zhuang Ding. "The Deletion of an Extra Six Nucleotides in the 5′ -untranslated Region of the Nucleoprotein Gene of Newcastle Disease Virus NA-1 Decreases Virulence." BMC Vet Res 2014.

Liu, Jiaxu, et al. "The Deletion of an Extra Six Nucleotides in the 5′ -untranslated Region of the Nucleoprotein Gene of Newcastle Disease Virus NA-1 Decreases Virulence." BMC Vet Res 2014.