Financial & competing interests disclosure
VK Sondak sits on the advisory board for Merck and Navidea. JL Messina is a consultant for GlaxoSmithKline and the Durect Corporation. 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.
No writing assistance was utilized in the production of this manuscript.