Logarithmic amplification, LA (log. units, see Equation 7.1), for different values of sustained stimulation with Epo ( Epo
). LA measures the signal amplification between pEpJ and DpS
. The dashed black line indicates the physiological value for serum concentration of Epo (aprox. 7.9·10-3 units/ml), while the finely dashed line indicates the concentration of Epo used in the experiments performed (5 units/ml).