00246nam a22001097a 4500003000400000082001800004100002600022245004400048250000900092260002700101300000800128SGT  a616.995bC03C  aCOLVERLEY, PETER M A   aCHRONIC OBSTRUCTIVE PULMONARY DISEASES   a2ND   aLONDON bARNODD c2003  a529