Molecular Reclassification of Crohn's Disease by Cluster Analysis of Genetic Variants Cleynen, Isabelle ; Mahachie John, Jestinah M. ; Henckaerts, Liesbet ; Van Moerkercke, Wouter ; Rutgeerts, Paul ; Van Steen, Kristel ; Vermeire, Severine Abstract Publication: PLoS ONE Pub Date: September 2010 DOI: 10.1371/journal.pone.0012952 Bibcode: 2010PLoSO...512952C