Potassium type k2 current (soma) for rd traub 2003, implemented by m lazarewicz 2003. Taken from traub et al. (2003), model no. 20756, with procedure settables() replaced with kinetic equations in derivative states, and new parameters v1 - v6. Kinetics appear to be unchanged, just with a different implementation. Modeling study, with experimental results (animal model info here), model was taken from two previous models of neocortical pyramidal cells (mainen et al. 1995, traub et al. 2003).