Download or read book Geocoding Health Data written by Gerard Rushton and published by CRC Press. This book was released on 2007-11-19 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, disease pattern mapping depended on census tracts based on political units, such as states and counties. However, with the advent of geographic information systems (GIS), researchers can now achieve a new level of precision and flexibility in geographic locating. This emerging technology allows the mapping of many different kinds of ge