blocks of tissue selected throughout the lung and from first generation rbs following airway microdissection had the following significant exposure-related changes : 57 % greater volume of rb in the lung , 27 % smaller diameter of rb lumen , 179 % thicker media and intima of peribronchiolar arterioles , 61 % thicker rb epithelium , and 77 % thicker pct .
C0006270
rb
C1179179
rb epithelium