Murray, Christopher JL; Lopez, Alan D; Chin, Brian; Feehan, Dennis; Hill, Kenneth H (December 23, 2006). "Estimation of potential global pandemic influenza mortality on the basis of vital registry data from the 1918—20 pandemic: a quantitative analysis". The Lancet. 368 (9554): 2211–2218. doi:10.1016/S0140-6736(06)69895-4. PMID17189032. S2CID22787011.
Murray, Christopher JL; Lopez, Alan D; Chin, Brian; Feehan, Dennis; Hill, Kenneth H (December 23, 2006). "Estimation of potential global pandemic influenza mortality on the basis of vital registry data from the 1918—20 pandemic: a quantitative analysis". The Lancet. 368 (9554): 2211–2218. doi:10.1016/S0140-6736(06)69895-4. PMID17189032. S2CID22787011.
Murray, Christopher JL; Lopez, Alan D; Chin, Brian; Feehan, Dennis; Hill, Kenneth H (December 23, 2006). "Estimation of potential global pandemic influenza mortality on the basis of vital registry data from the 1918—20 pandemic: a quantitative analysis". The Lancet. 368 (9554): 2211–2218. doi:10.1016/S0140-6736(06)69895-4. PMID17189032. S2CID22787011.