Acknowledgements
The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) OPTATIO under grant agreement n°278570”, as well as by the COMET Center ONCOTYROL.
Potential conflict of interest
Disclosure forms provided by the authors with the full text of this article are available at http://dx.doi.org/10.3109/10428194.2015.1099646.