Editorial: Enrollment and Adherence of Minorities in Clinical Trials for Chronic Pain. Principles and Practice of Clinical Research, [S. l.], v. 8, n. 4, 2023. DOI: 10.21801/ppcrj.2022.84.9. Disponível em: https://journal.ppcr.org/index.php/ppcrjournal/article/view/253.. Acesso em: 25 jun. 2024.