Couldn't generate code for the following reason:
Encountered unsupported operator exponentiale; 
  In MathML apply element.
  In MathML math element.
  In CellMLComponent element with name PFK.
  In Model element with cmeta:id vinnakota_rusk_palmer_shankland_kushmeric_2010_soleus with name vinnakota_rusk_palmer_shankland_kushmeric_2010_soleus.