Template:Ref-Sabin1922
From Embryology
Sabin FR. Direct growth of veins by sprouting. (1922) Contrib. Embryol., Carnegie Inst. Wash. No. 65 14: 1–10.
Sabin FR. Direct growth of veins by sprouting. (1922) Contrib. Embryol., Carnegie Inst. Wash. No. 65 14: 1–10.