TY  - RPRT
TI  - Expiratory obstruction in a circle system.
AU  - R P Alston
PY  - 1987
DO  - 10.1111/j.1365-2044.1987.tb05194.x
UR  - https://pubmed.ncbi.nlm.nih.gov/3688404/
ID  - 3688404
ER  -