title: Commentary.
authors.affiliation: Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Greece.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Natsis
authors.affiliation: Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Greece.
authors.forename: Maria
authors.initials: M
authors.lastname: Piagkou