Le Gallo, Manuel http://orcid.org/0000-0003-1600-6151
Sebastian, Abu http://orcid.org/0000-0001-5603-5243
Mathis, Roland http://orcid.org/0000-0002-1115-6508
Manica, Matteo
Giefers, Heiner
Tuma, Tomas
Bekas, Costas
Curioni, Alessandro
Eleftheriou, Evangelos
Article History
Received: 2 November 2017
Accepted: 14 March 2018
First Online: 17 April 2018
Competing interests
: The authors declare no competing interests.