Chowdhury, M.E.H., Khandakar, A., Alzoubi, K., Mansoor, S., M. Tahir, A., Reaz, M.B.I., Al-Emadi, N., 2019. Real-Time Smart-Digital Stethoscope System for Heart Diseases Monitoring 19.. https://doi.org/10.3390/s19122781