Sopronyi, Mihai
Sima, Felix
Vaulot, Cyril
Delmotte, Luc
Bahouka, Armel
Matei Ghimbeu, Camelia
Article History
Received: 5 October 2016
Accepted: 23 November 2016
First Online: 21 December 2016
Competing interests
: The authors declare no competing financial interests.