Ellis, K L
Zhou, Y
Beshansky, J R
Ainehsazan, E
Yang, Y
Selker, H P
Huggins, G S
Cupples, L A
Peter, I
Article History
Received: 13 February 2014
Revised: 29 April 2014
Accepted: 4 June 2014
First Online: 19 August 2014
Competing interests
: The authors declare no conflict of interest.