Fixed a =+ to a+= in the internal hemorrhage rate calculation. Added the vena...

Fixed a =+ to a+= in the internal hemorrhage rate calculation. Added the vena cava and aorta to the abdomen compartment to allow internal bleeding from them.

engine/cpp/controller/Controller.cpp

@@ -1819,6 +1819,8 @@ void PulseController::SetupCardiovascular()
   vAbdomen.AddChild(vRightKidney);
   vAbdomen.AddChild(vSpleen);
   vAbdomen.AddChild(vLiver);
+  vAbdomen.AddChild(vVenaCava);
+  vAbdomen.AddChild(vAorta);
   vAbdomen.AddChild(vAbdominalCavity);
 
 

engine/cpp/physiology/Cardiovascular.cpp

@@ -1154,7 +1154,7 @@ void Cardiovascular::Hemorrhage()
 	//total the internal hemorrhage flow rate and apply it to the abdominal cavity path
 	for (auto hemorrhage : m_InternalHemorrhagePaths)
 	{
-		internal_rate_mL_Per_s = +hemorrhage->GetNextFlowSource().GetValue(VolumePerTimeUnit::mL_Per_s);
+		internal_rate_mL_Per_s += hemorrhage->GetNextFlowSource().GetValue(VolumePerTimeUnit::mL_Per_s);
 	}
 	m_pGndToAbdominalCavity->GetNextFlowSource().SetValue(internal_rate_mL_Per_s, VolumePerTimeUnit::mL_Per_s);