Liu, Mingdong
Maurano, Matthew T
Wang, Hao
Qi, Heyuan
Song, Chao-Zhong
Navas, Patrick A
Emery, David W
Stamatoyannopoulos, John A
Stamatoyannopoulos, George
Article History
Received: 7 January 2014
Accepted: 9 October 2014
First Online: 12 January 2015
Competing interests
: The authors declare no competing financial interests.