@article{falsarella_ferreira_nakashima_mattos_mattos_2011,  title={Evidence of an association between the O blood group and allergic rhinitis},  volume={33},  ISSN={1516-8484},  url={https://doi.org/10.5581/1516-8484.20110120},  DOI={10.5581/1516-8484.20110120},  number={6},  journal={Revista Brasileira de Hematologia e Hemoterapia},  publisher={Associação Brasileira de Hematologia e Hemoterapia e Terapia Celular},  author={Falsarella, Nelson and Ferreira, Ana Iara da Costa and Nakashima, Fabiana and Mattos, Cinara de Cássia Brandão de and Mattos, Luiz Carlos de},  year={2011},  month={Dec},  pages={444–448} }