^pof;
Traumatology;
and;
Orthopedics,;
Nanfang;
Hospital,;
Southern;
Medical;
University,;
Guangzhou,;
Guangdong;
510515,;
China;
^pof;
Biostatistics,;
Southern;
Medical;
University,;
Guangzhu,;
Gungdong;
510515,;
China;
骨髓间充质干细胞; 共培养体系; 软骨细胞; 山羊; 骨髓基质干细胞; 体外培养; 免疫组化染色; PLGA;