Xie, Yingqiu
Mustafa, Aidana
Yerzhan, Adina
Merzhakupova, Dalmira
Yerlan, Perizat
N Orakov, Askarbek
Wang, Xiao
Huang, Yi
Miao, Lixia
Article History
Received: 23 March 2017
Accepted: 30 April 2017
First Online: 14 August 2017
Competing interests
: The authors declare no conflict of interest.