Cornell, R F
Kassim, A A
Article History
Received: 7 June 2015
Revised: 8 October 2015
Accepted: 22 October 2015
First Online: 4 January 2016
Competing interests
: RFC declares no potential conflicts of interest. AAK has received research grants from Novartis Pharmaceuticals and Celgene, whose products are discussed in this article.