Radial extracorporeal shockwave treatment compared with supervised exercises in patients with subacromial pain syndrome: a single blind randomised study.

Engebretsen K, Grotle M, Bautz-Holter E, et al.
Brit Med J 2009; 339:b3360

Comparison of the recovery of patients suffering from shoulder pain with two different methods: extracorporeal shock wave therapy and supervised exercises. 

Read the full article: http://www.bmj.com/content/339/bmj.b3360