Couldn't generate code for the following reason:
Encountered unsupported operator partialdiff; 
  In MathML apply element.
  In MathML math element.
  In CellMLComponent element with cmeta:id L with name L.
  In Model element with cmeta:id maly_wiley_lauffenburger_2004_version01 with name maly_wiley_lauffenburger_2004_version01.