More comments on COBTA's position on vaccine titers.

@article{Palmquist2003MoreCO,
  title={More comments on COBTA's position on vaccine titers.},
  author={Richard Palmquist},
  journal={Journal of the American Veterinary Medical Association},
  year={2003},
  volume={222 8},
  pages={1072-3; author reply 1073}
}