@article{araújo_perroca_jericó_2009,  title={Variability in the complexity of patient's nursing care needs},  volume={17},  ISSN={0104-1169},  url={https://doi.org/10.1590/S0104-11692009000100006},  DOI={10.1590/S0104-11692009000100006},  number={1},  journal={Revista Latino-Americana de Enfermagem},  publisher={Escola de Enfermagem de Ribeirão Preto / Universidade de São Paulo},  author={Araújo, Vivian Brito de and Perroca, Márcia Galan and Jericó, Marli de Carvalho},  year={2009},  month={Jan},  pages={34–39} }