German Randomized Acupuncture Trial for Chronic Shoulder Pain (GRASP) – a pragmatic, controlled, patient-blinded, multi-centre trial in an outpatient care environment

Luime, 2004, Prevalence and incidence of shoulder pain in the general population; a systematic review, Scand J Rheumatol, 33, 73, 10.1080/03009740310004667

Green, 2005, Acupuncture for shoulder pain, Cochrane Database of Systematic Reviews, CD005319

Buchbinder, 2003, Corticosteroid injections for shoulder pain, Cochrane Database of Systematic Reviews, CD004016

Buchbinder, 2006, Oral steroids for adhesive capsulitis, Cochrane Database of Systematic Reviews, CD006189

Favejee, 2011, Frozen shoulder: the effectiveness of conservative and surgical interventions-systematic review, Br J Sports Med, 45, 49, 10.1136/bjsm.2010.071431

Roland, 1998, Understanding controlled trials: What are pragmatic trials?, BMJ, 316, 285, 10.1136/bmj.316.7127.285

Hertel, 2000, Die steife Schulter, Orthopäde, 29, 845, 10.1007/PL00003700