TY - JOUR T1 - Structural and inflammatory changes in COPD: a comparison with asthma. JF - Thorax JO - Thorax SP - 129 LP - 136 DO - 10.1136/thx.53.2.129 VL - 53 IS - 2 AU - P K Jeffery Y1 - 1998/02/01 UR - http://thorax.bmj.com/content/53/2/129.abstract ER -