TY  - RPRT
TI  - Forced expiratory flow-volume relationships. Changes after upper abdominal surgery.
AU  - G B Drummond
AU  - N H Gordon
PY  - 1977
DO  - 10.1111/j.1365-2044.1977.tb09984.x
UR  - https://pubmed.ncbi.nlm.nih.gov/869146/
ID  - 869146
ER  -