@incollection{Al-Qudah11,
author = {Mohannad Al-Qudah},
title = {Refractory Chronic Rhinosinusitis: Etiology & Management},
booktitle = {Peculiar Aspects of Rhinosinusitis},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Gian Luigi Marseglia and Davide Paolo Caimmi},
chapter = {4},
doi = {10.5772/25559},
url = {https://doi.org/10.5772/25559}
}