TY  - RPRT
TI  - Breathlessness.
AU  - A Cockcroft
AU  - A Guz
PY  - 1987
DO  - 10.1136/pgmj.63.742.637
UR  - https://pubmed.ncbi.nlm.nih.gov/3321008/
ID  - 3321008
ER  -