Template:Ref-Fawcett1905
From Embryology
Fawcett E. The circle of Willis - An examination of 700 specimens. (1905) Amer. J Anat. 4:265-302.
Fawcett E. The circle of Willis - An examination of 700 specimens. (1905) Amer. J Anat. 4:265-302.