This study includes the following datasets:

• Hippocampus Consortium M430v2 CXB (Oct05) MAS5
• Hippocampus Consortium M430v2 CXB (Oct05) RMA
• Hippocampus Consortium M430v2 CXB (Oct05) PDNN
• Hippocampus Consortium M430v2 CXB (Dec05) PDNN
• Hippocampus Consortium M430v2 CXB (Dec05) RMA
• Hippocampus Consortium M430v2 (Jun06) RMA
• Hippocampus Consortium M430v2 (Jun06) MAS5
• Hippocampus Consortium M430v2 (Jun06) PDNN