Figure 1.

Number of non-gene meanings for gene symbols. Dots indicate the number of human gene symbols (on the vertical axis) and, for each of these symbols, the number of corresponding long forms with a non-gene meaning (horizontal axis). It should be noted that spelling variations may yield different long forms for the same non-gene meaning. To reduce the effect of these variations, long forms were stemmed.

Schijvenaars et al. BMC Bioinformatics 2005 6:149   doi:10.1186/1471-2105-6-149
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