@article{telles_castilho_2007,  title={Staff cost in direct nursing care at an intensive care unit},  volume={15},  ISSN={0104-1169},  url={https://doi.org/10.1590/S0104-11692007000500019},  DOI={10.1590/S0104-11692007000500019},  number={5},  journal={Revista Latino-Americana de Enfermagem},  publisher={Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo},  author={Telles, Sandra Cristina Ribeiro and Castilho, Valéria},  year={2007},  month={Sep},  pages={1005–1009} }