@article{sampaio_padovan_marchini_oliveira_almeida_2010,  title={Rat brain polyamines: an analytical method validation},  volume={46},  ISSN={1676-2444},  url={https://doi.org/10.1590/S1676-24442010000600005},  DOI={10.1590/S1676-24442010000600005},  number={6},  journal={Jornal Brasileiro de Patologia e Medicina Laboratorial},  publisher={Sociedade Brasileira de Patologia Clínica,   },  author={Sampaio, Valdomiro de Freitas and Padovan, Gilberto J. and Marchini, Julio Sérgio and Oliveira, Luiz Marcellino de and Almeida, Sebastião Sousa},  year={2010},  month={Dec},  pages={455–461} }