1. Enterline PE, Stewart WH: Geographic patterns in deaths from coronary heart disease. Public Health Rep. 1956, 71 (9): 849-855.
2. West RR: Geographical variation mortality from ischaemic heart disease in England and Wales. Br J Prev Soc Med. 1977, 31 (4): 245-250.
3. Shaper AG: Geographic variations in cardiovascular mortality in Great Britain. Br Med Bull. 1984, 40 (4): 366-373.
4. Crombie IK, Smith WC, Kenicer MB, Tunstall-Pedoe H: Geographical variation in coronary heart disease mortality in Scotland. Health Bull (Edinb). 1986, 44 (4): 193-202.
5. Tuomilehto J, Kuulasmaa K, Torppa J: WHO MONICA Project: geographic variation in mortality from cardiovascular diseases. Baseline data on selected population characteristics and cardiovascular mortality. World Health Stat Q. 1987, 40 (2): 171-184.