TY  - RPRT
TI  - A conservation device for oxygen therapy in COPD.
AU  - T W Evans
AU  - J C Waterhouse
AU  - A J Suggett
AU  - P Howard
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/3147198/
ID  - 3147198
ER  -