Protozoans in stools unpreserved and preserved in PVA-fixative.

@article{Goldman1953ProtozoansIS,
  title={Protozoans in stools unpreserved and preserved in PVA-fixative.},
  author={Matt Goldman and Marvin M Brooke},
  journal={Public health reports},
  year={1953},
  volume={68 7},
  pages={703-6}
}