@article{oliveira_reis_2020,  title={What are the perspectives for blood donations and blood component transfusion worldwide? A systematic review of time series studies},  volume={138},  ISSN={1516-3180},  url={https://doi.org/10.1590/1516-3180.2019.0415.R1.06112019},  DOI={10.1590/1516-3180.2019.0415.R1.06112019},  number={1},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Oliveira, Elias Melo de and Reis, Ilka Afonso},  year={2020},  month={Jan},  pages={54–59} }