Media type: E-Article Title: Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples Contributor: Frey, Dario L.; Guerra, Matteo; Mall, Marcus A.; Schultz, Carsten Published: MyJove Corporation, 2021 Published in: Journal of Visualized Experiments (2021) 171 Language: English DOI: 10.3791/62193 ISSN: 1940-087X Origination: Footnote: