Publications Statistical Analysis Plan for the 5-year and 10-year Follow-Up Assessments of the FIDELITY Trial by Raine Sihvonen, Roope Kalske, Martin Englund, Aleksandra Turkiewicz, Pirjo Toivonen, Simo Taimela, Teppo Järvinen Trials, 2020 Jan 14 FIDELITY Placebo-surgery controlled trials 14.1.2020 Article PubMed