1. Study protocol for a randomised, double-blinded, placebo-controlled phase III trial examining the add-on efficacy, cost–utility and neurobiological effects of low-dose naltrexone (LDN) in patients with fibromyalgia (INNOVA study). Issue 1 (6th January 2022) Authors: Colomer-Carbonell, Ariadna; Sanabria-Mazo, Juan P; Hernández-Negrín, Halbert; Borràs, Xavier; Suso-Ribera, Carlos; García-Palacios, Azucena; Muchart, Jordi; Munuera, Josep; D'Amico, Francesco; Maes, Michael; Younger, Jarred W; Feliu-Soler, Albert; Rozadilla-Sacanell, Antoni; Luciano, Juan V Journal: BMJ open Issue: Volume 12:Issue 1(2022) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗