@article{machado_leite_dos santos_artuso_gluszczak_de jesus_caldas_bredemeier_2019,  title={Turn down - turn up: a simple and low-cost protocol for preparing platelet-rich plasma},  volume={74},  ISSN={1807-5932},  url={https://doi.org/10.6061/clinics/2019/e1132},  DOI={10.6061/clinics/2019/e1132},  journal={Clinics},  publisher={Faculdade de Medicina / USP},  author={Machado, Edilson Silva and Leite, Renata and dos Santos, Cintia Cichowski and Artuso, Georgia Lazzari and Gluszczak, Fernando and de Jesus, Leonardo Giovani and Caldas, José Manuel Peixoto and Bredemeier, Markus},  year={2019},  pages={e1132} }