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Map to show standardised differences between residents' perceived access and drive-time to nearest hospital A&E department. Smoothed using inverse distance weighting, cell size 100 m, search radius 3 km, exponent 2, maximum points 500. The map shows location of the six hospital A&E departments and adjacent county boroughs to Caerphilly county borough. Crown copyright material is reproduced with the permission of the Controller of HMSO and the Queen's Printer for Scotland.
