Ragettli, Martina S
Phuleria, Harish C
Tsai, Ming-Yi
Schindler, Christian
de Nazelle, Audrey
Ducret-Stich, Regina E
Ineichen, Alex
Perez, Laura
Braun-Fahrländer, Charlotte
Probst-Hensch, Nicole
Künzli, Nino
Article History
Received: 20 May 2014
Revised: 19 August 2014
Accepted: 1 October 2014
First Online: 10 December 2014
Competing interests
: The authors declare no conflict of interest.