Smeets, Paul J. M.
Cho, Kang Rae
Kempen, Ralph G. E.
Sommerdijk, Nico A. J. M.
De Yoreo, James J.
Article History
Received: 31 August 2014
Accepted: 12 December 2014
First Online: 26 January 2015
Competing interests
: The authors declare no competing financial interests.