Repressing of SOX6 and SOX9 in Situ Chondrogenic Differentiation of Rat Bone Marrow Stromal Cells oleh Mohammad Hassan Karimfar, Aliasghar Peyvandi, Mohsen Noorozian, Navid Ahmadi Roozbahani, Reza Mastery Farahani, Maryam Sadat Khoramgah, Hadi Azimi, Ayad Bahadori Monfared, Hojjat-Allah Abbaszadeh