Persistent activity of injectable ivermectin in the control of the cattle tick Boophilus microplus.

@article{Cramer1988PersistentAO,
  title={Persistent activity of injectable ivermectin in the control of the cattle tick Boophilus microplus.},
  author={Luiz G. Cramer and A A Bridi and Nelson Amaral and Sheila J. Gross},
  journal={The Veterinary record},
  year={1988},
  volume={122 25},
  pages={611-2}
}