TY  - GEN
AU  - Kerwin,Edward
TI  - Tiotropium in Early-Stage COPD
SN  - 1533-4406
PY  - 2017///1208
KW  - Bronchodilator Agents
KW  - Humans
KW  - Pulmonary Disease, Chronic Obstructive
KW  - Scopolamine Derivatives
KW  - Tiotropium Bromide
N1  - Publication Type: Letter; Comment
UR  - https://doi.org/10.1056/NEJMc1713253
ER  -