Wang, Ching-WenChing-WenWangWang, Ching-HoChing-HoWang2011-02-152018-07-092011-02-152018-07-092003-12http://ntur.lib.ntu.edu.tw//handle/246246/227044en-USExperimental selection of virus derivatives with variations in virulence from a single low-pathogenicity H6N1 avian influenza virus field isolatejournal article