@article{habr-gama_bringel_nahas_araújo_souza junior_calache_alves_1999,  title={Bowel preparation for colonoscopy: comparison of mannitol and sodium phosphate. Results of a prospective randomized study},  volume={54},  ISSN={0041-8781},  url={https://doi.org/10.1590/S0041-87811999000600004},  DOI={10.1590/S0041-87811999000600004},  number={6},  journal={Revista do Hospital das Clínicas},  publisher={Faculdade de Medicina / Universidade de São Paulo - FM/USP},  author={Habr-Gama, Angelita and Bringel, Robert William de Azevedo and Nahas, Sergio Carlos and Araújo, Sergio Eduardo de Alonso and Souza Junior, Afonso Henrique de and Calache, João Elias and Alves, Paulo Arruda},  year={1999},  month={Nov},  pages={187–192} }