Burki, J R
Omar, I
Shah, P J R
Hamid, R
Article History
Received: 25 February 2014
Accepted: 3 May 2014
First Online: 10 June 2014
Competing interests
: Mr R Hamid is an advisor and lectures for Allergan, Pfizer and Astellas, Mr J Shah is an advisor and lectures for Pfizer, Allergan and AMS. The remaining authors declare no conflict of interest.