TY  - BOOK
AU  - Gerard J. Criner
AU  - Bartolome R. Celli
TI  - Clinics in Chest Medicine: Chronic Obstructive Pulmonary disease
SN  - 0272-5231
PY  - 2020///
CY  -  John F. Kennedy , Philadelphia , Pennsylvania, 19103-2899
PB  -  Elsevier 
KW  - Pulmonary Medicine
N1  - Volume: 41
Number 3
2020

ER  -