TY  - RPRT
TI  - THE VACUUM EXTRACTOR.
AU  - G O SMITH
PY  - 1965
DO  - 10.5694/j.1326-5377.1965.tb71652.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14261909/
ID  - 14261909
ER  -