TY  - RPRT
TI  - Corticosteroids for chronic obstructive pulmonary disease.
AU  - R Gilbert
PY  - 1991
DO  - 10.7326/0003-4819-114-8-704_1
UR  - https://pubmed.ncbi.nlm.nih.gov/2003723/
ID  - 2003723
ER  -