GBD 2013 Mortality and Causes of Death, Collaborators (17 Aralık 2014). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013". Lancet. Cilt 385. ss. 117-71. doi:10.1016/S0140-6736(14)61682-2. PMC4340604 $2. PMID25530442.
GBD 2013 Mortality and Causes of Death, Collaborators (17 Aralık 2014). "Global, regional, and national age-sex specific all-cause and cause-specific mortality for 240 causes of death, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013". Lancet. Cilt 385. ss. 117-71. doi:10.1016/S0140-6736(14)61682-2. PMC4340604 $2. PMID25530442.