A Preliminary Study Comparing Microfracture and Local Adherent Transplantation of Autologous Adipose-Derived Stem Cells Followed by Intraarticular Injection of Platelet-Rich Plasma for the Treatment of Chondral Defects in Rabbits / Tímea Špaková, Judita Amrichová, Jana Plšíková, Denisa Harvanová, Slavomír Horňák, Valent Ledecký, Ján Rosocha KE304