TY  - RPRT
TI  - Effect of cold air on exercise capacity in COPD: increase or decrease?
AU  - H Koskela
AU  - J Pihlajamäki
AU  - H Pekkarinen
AU  - H Tukiainen
PY  - 1998
DO  - 10.1378/chest.113.6.1560
UR  - https://pubmed.ncbi.nlm.nih.gov/9631794/
ID  - 9631794
ER  -