Subacromial decompression versus diagnostic arthroscopy for shoulder impingement: randomised, placebo surgery controlled clinical trial
by Mika Paavola, Antti Malmivaara, Simo Taimela, Kari Kanto, Jari Inkinen, Juha Kalske, Ilkka Sinisaari, Vesa Savolainen, Jonas Ranstam, Teppo L N Järvinen, for the Finnish Subacromial Impingement Arthroscopy Controlled Trial (FIMPACT) Investigators