Genome-wide Identification and Characterization of a Superfamily of Bacterial Extracellular Contractile Injection Systems oleh Lihong Chen, Nan Song, Bo Liu, Nan Zhang, Nabil-Fareed Alikhan, Zhemin Zhou, Yanyan Zhou, Siyu Zhou, Dandan Zheng, Mingxing Chen, Alexia Hapeshi, Joseph Healey, Nicholas R. Waterfield, Jian Yang, Guowei Yang