@article{dantas_alves_cassiani_2009,  title={Gender differences in proximal esophageal contractions},  volume={46},  ISSN={0004-2803},  url={https://doi.org/10.1590/S0004-28032009000400007},  DOI={10.1590/S0004-28032009000400007},  number={4},  journal={Arquivos de Gastroenterologia},  publisher={Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. },  author={Dantas, Roberto Oliveira and Alves, Leda Maria Tavares and Cassiani, Rachel de Aguiar},  year={2009},  month={Oct},  pages={284–287} }