BEAT: Bioinformatics Exon Array Tool to store, analyze and visualize Affymetrix GeneChip Human Exon Array data from disease experiments by Consiglio Arianna, Carella Massimo, De Caro Giorgio, Delle Foglie Gianfranco, Giovannelli Candida, Grillo Giorgio, Ianigro Massimo, Licciulli Flavio, Palumbo Orazio, Piepoli Ada, Ranieri Elena, Liuni Sabino