Palmeri, L
Gradwohl, G
Nitzan, M
Hoffman, E
Adar, Y
Shapir, Y
Koppel, R
Article History
Received: 11 May 2016
Revised: 25 July 2016
Accepted: 3 August 2016
First Online: 29 September 2016
Competing interests
: The authors declare no conflict of interest.