Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (PD/BD/105890/2014)
Text and Data Mining valid from 2018-01-14
Received: 5 September 2017
Accepted: 20 November 2017
First Online: 14 January 2018
Duality of interest
: The sponsor (Galvani Bioelectronics, former GlaxoSmithKline Bioelectronics R&D) was involved in the collection, analysis and interpretation of data, as well as in writing the report. SVC has received funding for research support from GlaxoSmithKline Bioelectronics R&D. DJC, NR, VP and WD are employees of Galvani Bioelectronics. AR is employee of GlaxoSmithKline. SP and BJH have been employees of GlaxoSmithKline.