TY  - RPRT
TI  - Automatic unidirectional flow valve.
AU  - D F REES
PY  - 1960
DO  - 10.1111/j.1365-2044.1960.tb13910.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14436890/
ID  - 14436890
ER  -