Comment on

• Mapping of inflammatory bowel disease in northern France: spatial variations and relation to affluence.

  Declercq C, Gower-Rousseau C, Vernier-Massouille G, Salleron J, Baldé M, Poirier G, Lerebours E, Dupas JL, Merle V, Marti R, Duhamel A, Cortot A, Salomez JL, Colombel JF. Declercq C, et al. Inflamm Bowel Dis. 2010 May;16(5):807-12. doi: 10.1002/ibd.21111. Inflamm Bowel Dis. 2010. PMID: 19774647
• Fine-scale geographic variations of inflammatory bowel disease in France: correlation with socioeconomic and house equipment variables.

  Nerich V, Monnet E, Weill A, Vallier N, Vanbockstael V, Auleley GR, Balaire C, Dubost P, Rican S, Allemand H, Carbonnel F. Nerich V, et al. Inflamm Bowel Dis. 2010 May;16(5):813-21. doi: 10.1002/ibd.21122. Inflamm Bowel Dis. 2010. PMID: 19902547