@book{Mathers2001,
author = {Mathers, C.D. and Vos, T. and Lopez, A.D. and Salomon, J. and Ezzati, M.},
title= {National burden of disease studies: A practical guide. Edition 2.0. Global Program on Evidence for Health Policy},
year = {2001},
address = {Geneva},
publisher = {WHO},
}