Smith, R. F.
Eggert, J. H.
Jeanloz, R.
Duffy, T. S.
Braun, D. G.
Patterson, J. R.
Rudd, R. E.
Biener, J.
Lazicki, A. E.
Hamza, A. V.
Wang, J.
Braun, T.
Benedict, L. X.
Celliers, P. M.
Collins, G. W.
Article History
Received: 8 October 2013
Accepted: 16 May 2014
First Online: 16 July 2014
Competing interests
: The authors declare no competing financial interests.