@article{romaña_1956,  title={Acerca del ciclo evolutivo del Trypanosoma (Schizotrypanum) cruzi Chagas 1909, en sus fases tisular y hematica},  volume={54},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761956000100010},  DOI={10.1590/S0074-02761956000100010},  number={1},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Romaña, Cecilio},  year={1956},  month={Jun},  pages={255–269} }