@article{graça_macedo_palheta jr_gondim_nogueira_correia_rola_oliveira_souza_santos_2008,  title={Sildenafil delays the intestinal transit of a liquid meal in awake rats},  volume={41},  ISSN={0100-879X},  url={https://www.scielo.br/j/bjmbr/a/brRxwryQrVmLkVqSQXSSYYc/},  number={1},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Graça, J.R.V and Macedo, G.M and Palheta Jr, R.C and Gondim, F. de A.A and Nogueira, R.O and Correia, J.M and Rola, F.H and Oliveira, R.B and Souza, M.A.N and Santos, A.A},  year={2008},  month={Jan},  pages={78–81} }