Summary of the number of genes passed different criteria in 13 organ/tissue types.

*The criterion is that the CV of the intensity of the gene in the physiological state is smaller than 30%. CV, coefficient of variation, is equal to standard deviation divided by mean.§The criterion is that the maximum of the fold change of mean intensity between physiological states is smaller than 1.2.¥The number of genes stably expressed within and between physiological states.