1. Daniels DL, Mafee MF, Smith MM, Smith TL, Naidich TP, Brown WD, Bolger WE, Mark LP, Ulmer JL, Hacein-Bey L, Strottmann JM (2003) The frontal sinus drainage pathway and related structures. Am J Neuroradiol 24:1618–1627
2. Hosemann W, Gross R, Goede U, Kuehnel T (2001) Clinical anatomy of the nasal process of the frontal bone (spina nasalis interna). Otolaryngol Head Neck Surg 125:60–65
3. Lawson W (1994) The intranasal ethmoidectomy: evolution and an assessment of the procedure. Laryngoscope 104:1–49
4. Lessa MM, Voegels RL, Cuntha Filho B, Sakae F, Butugan O, Wolf G (2007) Frontal recess anatomy study by endoscopic dissection in cadavers. Braz J Otorhinolaryngol 3:204–209
5. Lund VJ, Stammberger H, Fokkens WJ, Beale T, Bernal-Sprekelsen M, Eloy P, Georgalas C, Gerstenberger C, Hellings P, Herman P, Hosemann WG, Jankowski R, Jones N, Jorissen M, Leunig A, Onerci M, Rimmer J, Rombaux P, Simmen D, Tomazic PV, Tschabitscherr M, Welge-Luessen A (2014) European position paper on the anatomical terminology of the internal nose and paranasal sinuses. Rhinol Suppl 24:1–34