[1] Univ Manchester, Ctr Hlth Informat, Fac Biol Med & Hlth, Manchester, England
[2] Univ Manchester, Christabel Pankhurst Inst Hlth Technol Res & Inno, Manchester, England
[3] Univ Liverpool, Inst Populat Hlth, Liverpool, England
[4] Microsoft Res Cambridge, Cambridge, England