1. Fatua C, Puisorub M, Rotaruc M, Trutad AM (2006) Morphometric evaluation of the frontal sinus in relation to age. Ann Anat 188(3):275–280
2. Vázquez A, Baredes S, Setzen M, Eloy JA (2016) Overview of frontal sinus pathology and management. Otolaryngol Clin N Am 49(4):899–910
3. 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(8):1618–1627
4. Yüksel Aslier NG, Karabay N, Zeybek G, Keskinoğlu P, Kiray A, Sütay S, Ecevit MC (2016) The classification of frontal sinus pneumatization patterns by CT-based volumetry. Surg Radiol Anat 38(8):923–930
5. Schaeffer JP (1920) The nose, paranasal sinuses, nasolacrimal passageways, and olfactory organ in man: a genetic, developmental, and anatomico-physiological consideration. Blakiston’s Son & Co, Philadelphia