Paper - The Borderland of Embryology and Pathology
From Embryology
<pubmed>15426876</pubmed>
PMID 15426876
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1930017
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1930017/pdf/bullnyacadmed00460-0016.pdf