Computing travel time when the exact address is unknown: a comparison of point and polygon ZIP code approximation methods - Berke, Ethan M; Shi, Xun (International journal of health geographics, 2009)
Keywords: Arizona; Cancer Care Facilities; Data Interpretation, Statistical; Health aspects; Health Services Accessibility; Humans; Management; Measurement; Methodology; Methods; New Hampshire; Time Factors; Transport of sick and wounded; Travel; Travel time (Traffic engineering); Zip code; Arizona; New Hampshire; United States