Fig. 4From: Activation and polarization of circulating monocytes in severe chronic obstructive pulmonary diseaseIncreased CD163 and CD206 expression density in classical and non-classical monocytes in COPD patients. Classical (a, c, e) and non-classical (b, d, f) monocytes were stained for CD163 (a, b), CD206 (c, d), and CD25 (e, f) expression. The degree of expression is reported as the MFIBack to article page