Müller, Pavel
Bouly, Jean-Pierre
Hitomi, Kenichi
Balland, Véronique
Getzoff, Elizabeth D.
Ritz, Thorsten
Brettel, Klaus
Article History
Received: 24 February 2014
Accepted: 14 April 2014
First Online: 5 June 2014
Competing interests
: The authors declare no competing financial interests.