Lotan, A
Lifschytz, T
Mernick, B
Lory, O
Levi, E
Ben-Shimol, E
Goelman, G
Lerer, B
Article History
Received: 30 July 2015
Revised: 29 December 2015
Accepted: 3 February 2016
First Online: 29 March 2016
Competing interests
: The authors declare no conflict of interest.