@article{Law1999,
author = {Law, M. and Wald, N.},
title= {Why heart disease mortality is low in France: The time lag explanation},
year = {1999},
URL = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1115846/},
journal = {British Medical Journal},
volume = {318},
number = {7196},
pages = {1471--1480},
}