we found that : ( 1 ) acute exacerbation of cao was characterized by high respiratory resistance ( reflecting in part time-constant inequalities within the lung ) and severe pulmonary hyperinflation , with `` '' intrinsic '' '' peep ( peepi ) up to 22 cm h2o ( mean [ sd ] , 13.5 [ 6.7 ] cm h2o ) ;
C0024117
cao
C0024109
lung