<p><b>Copyright information:</b></p><p>Taken from "Dosimetric comparison between coplanar and non coplanar field radiotherapy for ethmoid sinus cancer"</p><p>http://www.ro-journal.com/content/2/1/35</p><p>Radiation Oncology (London, England) 2007;2():35-35.</p><p>Published online 18 Sep 2007</p><p>PMCID:PMC2072954.</p><p></p> Minimum and maximum doses of the study group are represented by dotted lines