Ultrasound-guided collagen injections in the treatment of supraspinatus tendinopathy: a case series pilot study. J Biol Regul Homeost Agents.Corrado et al. 2020 May-Jun;
Prospective observational pilot study on 18 patients with supraspinatus tendinopathy. The infiltrative treatment showed an improvement in pain, functionality (Constant score and Dash), and tendon quality at ultrasound evaluation.