Xu, Qinghua
Kobayashi, Seijin
Ye, Xun
Meng, Xia
Article History
Received: 21 August 2014
Accepted: 4 November 2014
First Online: 28 November 2014
Competing interests
: Q.X., X.Y. and X.M. are employees of bio<b>Mérieux</b> (Shanghai) Co., Ltd. No other potential conflicts of interest were disclosed by authors.