. 2012 Apr 30;8:13. doi: 10.1186/1746-160X-8-13
Copyright ©2012 Inchingolo et al.; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
The incision to access on the mucosa of the nostril.