%0 Journal Article %T Multiple amino acid substitutions involved in the adaption of three avian-origin H7N9 influenza viruses in mice %A Chunyi Xue %A Jianru Qin %A Lang Gong %A Ouyang Peng %A Xiaoting Shen %A Yongchang Cao %J Archive of "Virology Journal". %D 2019 %R 10.1186/s12985-018-1109-1 %K H7N9 influenza virus %K virulence %K adaption %K mouse %K amino acid substitution %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6323857/