Corrigendum: A Novel Phage PD-6A3, and Its Endolysin Ply6A3, With Extended Lytic Activity Against Acinetobacter baumannii - Wu, Minle; Hu, Kongying; Xie, Youhua; Liu, Yili; Mu, Di; Guo, Huimin; Zhang, Zhifan; Zhang, Yingcong; Chang, Dong; Shi, Yi (Frontiers in Microbiology, 2019)