TY  - GEN
AU  - Di Stefano,A
AU  - Donner,C F
TI  - Severe vs. mild COPD: a different disease?
SN  - 1122-0643
PY  - 2004///0429
KW  - Biopsy
KW  - Bronchi
KW  - immunology
KW  - Humans
KW  - Macrophages
KW  - Pulmonary Disease, Chronic Obstructive
KW  - pathology
KW  - Severity of Illness Index
KW  - T-Lymphocytes
N1  - Publication Type: Journal Article; Review
ER  -