TY  - RPRT
TI  - Choosing a negative pressure ventilation pump: are there any important differences?
AU  - I E Smith
AU  - M A King
AU  - J M Shneerson
PY  - 1995
DO  - 10.1183/09031936.95.08101792
UR  - https://pubmed.ncbi.nlm.nih.gov/8586139/
ID  - 8586139
ER  -