1.
Abaza, A.A., Day, J.B., Reynolds, J.S., Mahmoud, A.M., Goldsmith, W.T., McKinney, W.G., Petsonk, E.L., Frazer, D.G., (2009). Classification of Voluntary Cough Sound and Airflow Patterns for Detecting Abnormal Pulmonary Function. Cough 5(1):8. doi: 10.1186/1745-9974-5-8.