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Field Validation of Food Service Listings: A Comparison of Commercial and Online Geographic Information System Databases
Many studies examining the food retail environment rely on geographic information system (GIS) databases for location information. The purpose of this study was to validate information provided by two GIS databases, comparing the positional accuracy of food service places within a 1 km circular buff...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
MDPI
2012
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3447575/ https://www.ncbi.nlm.nih.gov/pubmed/23066385 http://dx.doi.org/10.3390/ijerph9082601 |