Global, regional, and national life expectancy, all-cause mortality, and cause-specific mortality for 249 causes of death, 1980-2015: a systematic analysis for the Global Burden of Disease Study 2015 - Wang, HD; Naghavi, M; Allen, C; Barber, RM; Bhutta, ZA; Carter, A; Casey, DC; Charlson, FJ; Chen, AZ; Coates, MM; Coggeshall, M; Dandona, L; et al. (Lancet (London, England), 2016)