TY  - RPRT
TI  - Respirator efficiency measurement using quantitative DOP man tests.
AU  - E C Hyatt
AU  - J A Pritchard
AU  - C P Richards
PY  - 1972
DO  - 10.1080/0002889728506721
UR  - https://pubmed.ncbi.nlm.nih.gov/4512979/
ID  - 4512979
ER  -