@ARTICLE {28333,
author={M.  Martins and P. Gomes and C.O Oliveira and M. Coimbra and H. Silva},
doi={10.1109/TBME.2019.2913913},
journal={IEEE Transactions on Biomedical Engineering},
title={Design and Evaluation of a Diaphragm for Electrocardiography in Electronic Stethoscopes},
year={2019},
month={April},
volume={.},
number={.},
pages={1-3},
ISSN={0018-9294}
}