Popovici, George
Stratan, Ana Alexandra
Article History
Received: 9 January 2019
Accepted: 29 March 2019
First Online: 11 April 2019
Compliance with ethical standards
:
: The authors of this article certify that they have no affiliations with or involvements in any organization or entity with any financial, or non-financial interest in the subject matter or materials discussed in this manuscript.