Template:Ref-Schaeffer1910
From Embryology
Schaeffer JP. The sinus maxillarus and its relations in the embryo, child, and adult man. (1910) Amer. J Anat. 10: 313-
Schaeffer JP. The sinus maxillarus and its relations in the embryo, child, and adult man. (1910) Amer. J Anat. 10: 313-