Abstract Parameter optimization (PO) methods to determine the ionic current composition of experimental cardiac action potential (AP) waveform have been developed using a computer model of cardiac membrane excitation. However. it was suggested that fitting a single AP record in the PO method was not always successful in providing a unique answer because of a shortage of information. W... https://www.nacrack.com/quick-find-PrimaLuna-EVO-400-Tube-Preamplifier-super-choice/