Keywords:
Articular cartilage; Biomedical engineering; Bone marrow–derived stromal cells; Cartilage regeneration; Cartilage repair; Cartilage tissue engineering; Cell spheroids; Chondrogenesis; Chondrogenic differentiation; Hypoxia; Kartogenin; Mesenchymal stromal cells; Micropellets; Osteoarthritis; Parathyroid hormone; Pellet culture; Regenerative medicine; Stem cells; Tissue engineering