@article{spencer_aird_boni-mitake_nascimento_rogero_1998,  title={A single-step purification of bothropstoxin-1},  volume={31},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X1998000900004},  DOI={10.1590/S0100-879X1998000900004},  number={9},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Spencer, P.J. and Aird, S.D. and Boni-Mitake, M. and Nascimento, N. and Rogero, J.R.},  year={1998},  month={Sep},  pages={1125–1127} }