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Bow, C Jennifer D., Nigel M. Waters, Peter D. Faris, Judy E. Seidel, P Diane Galbraith, Merril L. Knudtson, a William A. Ghali. Accuracy of City Postal Code Coordinates As a Proxy for Location of Residence. BioMed Central, 2004.

Bow, C Jennifer D., et al. Accuracy of City Postal Code Coordinates As a Proxy for Location of Residence. BioMed Central, 2004.