@article{harada_andrade_brito_tavares_tarasoutchi_pomerantzeff_bortolotto_feltrim_2021,  title={Prevalence of Frailty in Patients Undergoing Cardiac Valve Surgery: Comparison of Frailty Tools},  volume={34},  ISSN={2359-5647},  url={https://doi.org/10.36660/ijcs.20200098},  DOI={10.36660/ijcs.20200098},  number={5},  journal={International Journal of Cardiovascular Sciences},  publisher={Sociedade Brasileira de Cardiologia},  author={Harada, Gabriela and Andrade, Monique Carvalho and Brito, Julia Nobrega and Tavares, Caio de Assis Moura and Tarasoutchi, Flávio and Pomerantzeff, Pablo Maria Alberto and Bortolotto, Luiz and Feltrim, Maria Ignez Zanetti},  year={2021},  month={Nov},  pages={78–86} }