Guo, Xia
Bakri, Iskandar
Abudula, Abulizi
Arken, Kalbinur
Mijit, Mahmut
Mamtimin, Batur
Upur, Halmurat
Article History
Received: 24 September 2015
Accepted: 25 May 2016
First Online: 14 June 2016
Competing interests
: The authors declare no competing financial interests.