Financial & competing interests disclosure
Professor David Isenberg has acted as a consultant for a number of companies including Merck Serono, GlaxoSmithKline, Eli Lilly and Celltech. The honoraria paid are transferred to a local arthritis charity. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.