Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article at www.informahealthcare.com/lal. Medical writing and editing services were provided by BlueMomentum, an Ashfield Company, and supported by Onyx Pharmaceuticals, Inc., an Amgen subsidiary.
Supplementary material available online
Supplementary Tables I–IV to be found online at http://informahealthcare.com/doi/abs/10.3109/10428194.2015.1020801.