@article{toniolo_peres_montezeli_2022,  title={Approaches of the systematization of nursing care, complexity and ontology in the professional practice of nurses},  volume={43},  ISSN={1983-1447},  url={https://doi.org/10.1590/1983-1447.2022.20210213.en},  DOI={10.1590/1983-1447.2022.20210213.en},  journal={Revista Gaúcha de Enfermagem},  publisher={Universidade Federal do Rio Grande do Sul. Escola de Enfermagem},  author={Toniolo, Rucieli Maria Moreira and Peres, Aida Maris and Montezeli, Juliana Helena},  year={2022},  pages={e20210213} }