Liu, Changchun
Sadik, Mohamed M.
Mauk, Michael G.
Edelstein, Paul H.
Bushman, Frederic D.
Gross, Robert
Bau, Haim H.
Article History
Received: 9 July 2014
Accepted: 11 November 2014
First Online: 5 December 2014
Competing interests
: The authors declare no competing financial interests.