1. Östör AJK, Richards CA, Prevost AT et al (2005) Diagnosis and relation to general health of shoulder disorders presenting to primary care. Baillieres Clin Rheumatol 44:800–805
2. Makela M, Heliovaara M, Sainio P, Knekt P, Impivaara O, Aromaa A (1999) Shoulder joint impairment among Finns aged 30 years or over: prevalence, risk factors and co-morbidity. Baillieres Clin Rheumatol 38:656–662
3. Garving C, Jakob S, Bauer I et al (2017) Impingement syndrome of the shoulder. Dtsch Ärztebl Int 114:765–776
4. Neer CS (1972) Anterior acromioplasty for the chronic impingement syndrome in the shoulder: a preliminary report. J Bone Joint Surg Am 54(1):41–50
5. Jäschke M, Köhler HC, Weber MA, Tischer T, Hacke C, Schulze C (2021) Subacromial impingement syndrome: association of multiple magnetic resonance imaging parameters with shoulder function and pain. Arch Orthop Trauma Surg. https://doi.org/10.1007/s00402-021-04032-6