Publications Statistical Analysis Plan for the 5-year and 10-year Follow-Up Assessments of the FIDELITY Trial by Sihvonen R, Kalske R, Englund M, Turkiewicz A, Toivonen P, Taimela S, Järvinen TLN Trials, 2020 Jan 14 FIDELITY Placebo-surgery controlled trials 14.1.2020 Article PubMed