[1] Northumbria Univ, Comp & Informat Sci Dept, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
[2] Digital Med Soc DiMe, Boston, MA 02114 USA
[3] Clin Trials Transformat Initiat CTTI, Durham, NC 27701 USA
[4] Elektra Labs, Boston, MA 02108 USA
[5] Harvard MIT Ctr Regulatory Sci, Boston, MA 02115 USA
[6] Grp Speciale Mobile Assoc GSMA, London EC4N 8AF, England
[7] Univ Birmingham, Inst Translat Med ITM, Birmingham B15 2TH, W Midlands, England
[8] Fed Univ Bahia UFBA, Comp Sci Dept, BR-40170110 Salvador, BA, Brazil
[9] Oregon Hlth & Sci Univ, Sch Med, Portland, OR 97239 USA