Allogeneic adipose stem cells mixed with fibrin glue were injected into common extensor tendon lesions  of 12 participants with chronic lateral epicondylitis; 6 subjects each were administered 10(6) or 10(7) cells in 1 ml. After 52 weeks of follow up, VAS scores progressively decreased and elbow performance scores improved. Tendon defects also significantly  decreased through this period (Lee et al., 2015)