TY  - RPRT
TI  - A variable-deadspace device for use with the Engström respirator.
AU  - S Jeretin
AU  - T Wandycz
PY  - 1971
DO  - 10.1097/00000542-197106000-00026
UR  - https://pubmed.ncbi.nlm.nih.gov/4997769/
ID  - 4997769
ER  -