Effect of Low dose Naltrexone versus Naproxen Extended-release for Pain Relief in knee osteoarthritis, a Triple-blinded, Non-inferiority Phase II Randomized Controlled Trial (FREEDOM) - Study Protocol. Principles and Practice of Clinical Research, [S. l.], v. 7, n. 1, 2021. DOI: 10.21801/ppcrj.2021.71.3. Disponível em: https://journal.ppcr.org/index.php/ppcrjournal/article/view/146.. Acesso em: 3 jul. 2024.