Flannigan, Ryan
Choy, Wai Ho
Chew, Ben
Lange, Dirk
Article History
First Online: 13 May 2014
Change Date: 27 May 2014
Change Type: Correction
Change Details: In the version of this article initially published online Wai Ho Choy's name was spelled incorrectly. The error has been corrected for the print, HTML and PDF versions of the article.
Competing interests
: B.C. declares consulting associations with Boston Scientific, Cook Medical, Olympus ACMI, PercSys and Bard Medical. D.L. declares consulting associations with Boston Scientific, Olympus, Cook Medical, PercSys, and Bard Medical. R.F. and W.H.C. declare no competing interests.