Figure 2.

Distribution of the number of synonyms. A synonym dictionary of gene symbols was compiled from 6 databases with a total of 113,503 unique symbols. Analysis of the number of synonyms for each symbol shows that 62,178 (54.8%) had more than one.

Chen and Sharp BMC Bioinformatics 2004 5:147   doi:10.1186/1471-2105-5-147
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