Template:Ref-ScammonNorris1918
From Embryology
Scammon RE. and Norris EH. On the time of the post-natal obliteration of the fetal blood-passages (foramen ovale, ductus arteriosus, ductus venosus)(1918) Anat. Rec. 15(4): 166-180.
Scammon RE. and Norris EH. On the time of the post-natal obliteration of the fetal blood-passages (foramen ovale, ductus arteriosus, ductus venosus)(1918) Anat. Rec. 15(4): 166-180.