135.0 34 RGC Activation and inactivation properties of voltage-gated calcium currents in developing cat retinal ganglion cells. Neuroscience, 1998, 85, 239-47 (0.1*(v-20)/(1-exp(-(v-20)/10))) 0.4*exp(-(v+25)/18) 0.01*exp(-(v+50)/10) 0.1/(1+exp(-(v+17)/17))