@article{santos_bertho_martins_marcovistz_2007,  title={The sample processing time interval as an influential factor in flow cytometry analysis of lymphocyte subsets},  volume={102},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02762007000100020},  DOI={10.1590/S0074-02762007000100020},  number={1},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Santos, Ana Paula dos and Bertho, Álvaro Luiz and Martins, Reinaldo de Menezes and Marcovistz, Rugimar},  year={2007},  month={Feb},  pages={117–120} }