José F. Rodríguez-Vázquez, PhD, MD, DDS Professor Head of Institute of Embryology Department of Anatomy and Human Embryology.Faculty of Medicine. Complutense University. Spain.
Complutense University of Madrid Institute of Embryology Human Embryo Collection (CUMIEHEC).
The study was performed in accordance with the provisions of the Declaration of Helsinki 1995 (as revised in Edinburgh 2000). The embryonic sections were from the large collection kept at the Embryology Institute, Universidad Complutense, Madrid. The specimens in the collection were products of miscarriages and ectopic pregnancies managed at the Department of Obstetrics at the university.
For observations of the Blechschmidt collection in the Medical Museum of Georg-August-Universität Göttingen, we did not need approval by the ethics committee of the institute. Our use of sections in the collection kept at the Institute of Embryology, Universidad Complutense Madrid was approved by the university ethics committee (No. B08/374). PMID 28127497