Wunderli, Jean Marc
Pieren, Reto
Habermacher, Manuel
Vienneau, Danielle
Cajochen, Christian
Probst-Hensch, Nicole
Röösli, Martin
Brink, Mark
Article History
Received: 7 April 2015
Revised: 17 June 2015
Accepted: 20 July 2015
First Online: 9 September 2015
Competing interests
: The authors declare no conflict of interest.