Scarisoreanu, N. D.
Craciun, F.
Birjega, R.
Ion, V.
Teodorescu, V. S.
Ghica, C.
Negrea, R.
Dinescu, M.
Article History
Received: 4 February 2016
Accepted: 19 April 2016
First Online: 9 May 2016
Competing interests
: The authors declare no competing financial interests.