HCV evolution and positive selection sites of HCV NS5B region among intravenous drug users in Guangdong Journal title: Chinese Journal of Blood Transfusion Authors: Min WANG, Ru XU, Qiao LIAO, Huishan ZHONG, Jieting HUANG, Rongsong DU, Zhengang SHAN, Xia RONG, Yong... Subject(s): Hematology