The Differential Association of the FcgR2a and FcgR3a Genes in Inflammatory Bowel Diseases Across Three Caucasian Populations - Weersma, Rinse K; Crusius, Bart; Koeleman, Bobby P; Roberts, Rebecca L; Palomino-Morales, Rogelio J; Woltkamp, Simone C; Hollis-Moffatt, Jade E; Festen, Eleonora A; Meisner, Sander; Heijmans, Roel; Gearry, Richard B; Barclay, Murray L; et al. (GASTROENTEROLOGY, 2009)