TY - JOUR A1 - Murray, C.J.L. A1 - Lopez, A.D. T1 - Global mortality, disability, and the contribution of risk factors: Global Burden of Disease Study Y1 - 1997 DO - 10.1016/S0140-6736(96)07495-8 JF - The Lancet VL - 349 IS - 9063 ER -