Efficacy of a single dose of cryopreserved human umbilical cord mesenchymal stromal cells for the treatment of knee osteoarthritis:a randomized, controlled, double-blind pilot study

Omar Amado Pico, Francisco Espinoza, María I. Cádiz, Claudia Sossa, Silvia Becerra‐Bayona, María C Canencio Salgado, Javier Eduardo Rengifo Rodríguez, Oscar Fabian Valdivieso Cárdenas, Johanna Marcela Quintero Cure, Maroun Khoury, Martha L. Arango-Rodríguez