Proventriculotomy in 21 ostriches, a retrospective study.

@article{Verstappen1997ProventriculotomyI2,
  title={Proventriculotomy in 21 ostriches, a retrospective study.},
  author={Frank A L M Verstappen},
  journal={The Veterinary quarterly},
  year={1997},
  volume={19 sup1},
  pages={62-63}
}