Protocol for a Pilot Phase IIa Randomized, Placebo-Controlled, Double-Blind, Crossover Study of Umbilical Cord-Derived Mesenchymal Stem Cells (UCMSC) for the Treatment of Relapsing-Remitting Multiple Sclerosis (RRMS):The MSCell Study. Principles and Practice of Clinical Research, [S. l.], v. 10, n. 3, 2024. DOI: 10.21801/ppcrj.2024.103.4. Disponível em: https://journal.ppcr.org/index.php/ppcrjournal/article/view/332.. Acesso em: 5 dec. 2024.