@article{souza_2001,  title={Iron deficiency and protection of blood donors},  volume={119},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31802001000400002},  DOI={10.1590/S1516-31802001000400002},  number={4},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Souza, Cármino Antonio De},  year={2001},  month={Jul},  pages={131–131} }