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. 2017 Dec 11;16:46. doi: 10.1186/s12942-017-0119-3

Fig. 1.

Fig. 1

Definition of “patient area” when including and excluding offer and demand outside. Focus on the IRIS named “Fournes-en-Weppes”- (IRIS no. 592 500 000), the Nord department are circled in blue, whereas neighboring IRIS from the three departments of Somme, Aisne and Pas-de-Calais are yellow. a) without consideration of offer and demand beyond the boundary; b) with consideration of offer and demand beyond the boundary