If there is {TAIL ~ a variation} in {HEAD ~ the measured resistance} in the inflow system at the same pressure by this method, this is emerging from expansion of the body cavity 
If there is { TAIL ~ a variation } in { HEAD ~ the measured resistance } in the inflow system at the same pressure by this method , this is emerging from expansion of the body cavity
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH