Linkage efficiency of databases within SRS. The percentage of records in a specific database (in rows) linked to others (columns) are shown. Numbers in brackets are the total number of fields in the particular database. The NKB/NKI Coupling , BC_NATURE_tVeer , Incyte Human UNIGEM V 1.0, PC_NATURE_Dhana. , Sigma/Compugen oligo array , and PC_PNAS_Lapointe , are linked to UniGene via a single accession code connection (see Figure 2). Direct links are depicted as grey cells. The Affymetrix U133A and U95 coupling files  are directly linked to different biological databases.
Veldhoven et al. BMC Bioinformatics 2005 6:192 doi:10.1186/1471-2105-6-192