@article{0741904ea4a5407ea470c7838fc81f98,
title = "Regional differences in endoscopic sinus surgery in Finland: a nationwide register-based study",
keywords = "CHRONIC RHINOSINUSITIS, PREVALENCE, DISEASE, 3125 Otorhinolaryngology, ophthalmology",
author = "Sanna Toppila-Salmi and Heikki Rihkanen and Martti Arffman and Kristiina Manderbacka and Ilmo Keskim{\"a}ki and Hyt{\"o}nen, {Maija L.}",
year = "2018",
month = oct,
doi = "10.1136/bmjopen-2018-022173",
language = "English",
volume = "8",
journal = "BMJ Open",
issn = "2044-6055",
publisher = "BMJ Publishing Group Ltd",
number = "10",
}