Narkiewicz, Olgierd, Department of Human Anatomy, Medical University of Lublin, Poland Nascimento, S.R. Naseri, L. Nasirizade, M.R. Nasr, A. Y., Associate professor of anatomy and embryology, faculty of medicine, Zagazig & King Abdul Aziz univesity Nasr, A. Y., Department of Anatomy, Faculty of Medicine, Zagazig University, Zagazig, Egypt; Department of Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia (Egypt) Nasr, A. Y., Department of Anatomy, Faculty of Medicine, Zagazig University, Zagazig, Egypt Department of Anatomy, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia Nasr, A. Y. Nasr, Ashraf Y., Anatomy Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt Nasr, Ashraf Y., Associate Professor, Anatomy Department, Faculty of medicine, Zagazig University, Zagazig, Egypt Nasr El-Din, W. A. Nasralla, M. M. Nasser, Ameen Nastaj, M. Nastas, L. Nastoulis, E. Nastoulis, E. (Greece) Nasu, H. Nat, A. Nat, A.S. Nateniyom, N. Natsis, K., Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Greece Natsis, K. Natsis, K., Department of Anatomy, Medical School, Aristotle University of Thessaloniki (Greece) Natsis, K., Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Greece