DURHAM, N.C.--(BUSINESS WIRE)--Feb. 28, 2006--Expression Analysis, Inc. a full-service microarray processing, analysis and data management organization, has expanded its July 2004 agreement to provide contract pharmacogenomics testing services using the Affymetrix GeneChip(R) platform to Wyeth Research, one of the world’s largest research-driven pharmaceutical and healthcare products companies. All microarray services provided under this agreement are to be compliant with 21 CFR Part 58 (Good Laboratory Practices) in support of clinical studies.