High prevalence of persistent pain 6 months after arthroscopic subacromial decompression and/or acromioclavicular joint resectionLone Dragnes Brix, Theis Muncholm Thillemann, Karen Toftdahl Bjørnholdt and Lone NikolajsenSICOT-J, 5 (2019) 21DOI: https://doi.org/10.1051/sicotj/2019021