TY - RPRT TI - The Origin of Human-infecting Avian Influenza A H6N1 Virus AU - Liangsheng Zhang AU - Zhenguo Zhang PY - 2013 DO - 10.1101/000398 UR - https://www.biorxiv.org/content/10.1101/000398v1 ID - 10.1101/000398 ER -