TY  - RPRT
TI  - A variable positive end expiratory pressure valve.
AU  - F M Emery
AU  - D Malton
PY  - 1972
DO  - 10.1093/bja/44.9.991-a
UR  - https://pubmed.ncbi.nlm.nih.gov/4564268/
ID  - 4564268
ER  -