@article{vega_pinto_ribeiro_spiegel_2022,  title={Pull processes in health care: a systematic literature review},  volume={29},  ISSN={0104-530X},  url={https://doi.org/10.1590/1806-9649-2022v29e1921},  DOI={10.1590/1806-9649-2022v29e1921},  journal={Gestão & Produção},  publisher={Universidade Federal de São Carlos},  author={Vega, Rafael Consentino de la and Pinto, Gustavo Oliveira and Ribeiro, Fatima Faria and Spiegel, Thaís},  year={2022},  pages={e1921} }