title: Retraction Note to: A Report on the Internal Retreat Meeting of the Stem Cell Network North Rhine Westphalia.
authors.affiliation: Department of Anatomy and Molecular Embryology, Institute of Anatomy, Ruhr-University of Bochum, Bochum, Germany. evangelia.kontopoulou@rub.de.
authors.forename: Evangelia
authors.initials: E
authors.lastname: Kontopoulou
authors.affiliation: Department of Anatomy and Molecular Embryology, Institute of Anatomy, Ruhr-University of Bochum, Bochum, Germany.
authors.forename: Oumaima
authors.initials: O
authors.lastname: Stambouli
authors.affiliation: Department of Anatomy and Molecular Embryology, Institute of Anatomy, Ruhr-University of Bochum, Bochum, Germany.
authors.forename: Sanjana
authors.initials: S
authors.lastname: Mathew