Porvaneckas, N., Republican Vilnius University Hospital Vilnius University, Medical faculty, Centre of Orthopaedics and Traumatology Porwolik, K. Porwolik, K., Department of Anatomy, Wroclaw Medical University Public Medical Training College in Opole (Poland) Porwolik, Krystian Porwolik, M. Porwolik, M., Department of Anatomy, Wroclaw Medical University, Wroclaw, Poland Non-public Medical College, Wroclaw, Poland (Poland) Porwolik, Michał Pośnik, Marta Pospiech, N. Pospieszny, Norbert Potu, Bhagath Kumar Pourfathi, H. Pourisa, M. Pourlis, A.F., Laboratory of Anatomy, Histology, and Embryology, Veterinary School, University of Thessaly, Karditsa, Greece Poyraz, F. Prabhu, A. Prabhu, L.V. Prachaney, P. Prada-Oliveira, J. A. Prado, F. B. Prado, F. B. (Brazil) Prados, Jose Prakash, Prasad, K. Prashanthi, N.