Tiron, Olga http://orcid.org/0000-0001-9810-4999
Bumbac, Costel
Manea, Elena
Stefanescu, Mihai
Nita Lazar, Mihai
Article History
Received: 27 January 2017
Accepted: 23 May 2017
First Online: 5 July 2017
Competing Interests
: The authors declare that they have no competing interests.