@article{almeida_schivo_lorenzetti_ferreira_2000,  title={Chronic intrathecal cannulation enhances nociceptive responses in rats},  volume={33},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X2000000800011},  DOI={10.1590/S0100-879X2000000800011},  number={8},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Almeida, F.R.C. and Schivo, I.R.S. and Lorenzetti, B.B. and Ferreira, S.H.},  year={2000},  month={Aug},  pages={949–956} }