TY  - RPRT
TI  - Long-term oxygen therapy.
AU  - S P Tarpy
AU  - B R Celli
PY  - 1995
DO  - 10.1056/nejm199509143331107
UR  - https://pubmed.ncbi.nlm.nih.gov/7637750/
ID  - 7637750
ER  -