Template:Ref-GemmillStewart1916
From Embryology
Gemmill JF. and Stewart J. Omphalopagous twins in the human subject. (1916) J Anat Physiol. 50: 316-323.
Gemmill JF. and Stewart J. Omphalopagous twins in the human subject. (1916) J Anat Physiol. 50: 316-323.