@incollection{Eschenbacher14,
author = {William L. Eschenbacher},
title = {Airflow Limitation and Spirometry},
booktitle = {COPD Clinical Perspectives},
publisher = {IntechOpen},
address = {Rijeka},
year = {2014},
editor = {Ralph J. Panos},
chapter = {1},
doi = {10.5772/57549},
url = {https://doi.org/10.5772/57549}
}