Umbilical cord blood provides hematopoietic stem cells for regenerating blood...

https://research-wiki.win/index.php/Is_Cord_Blood_Transplant_a_Treatment_for_SCID%3F_A_Clinical_Perspective

Umbilical cord blood provides hematopoietic stem cells for regenerating blood and immune systems. Simultaneously, cord tissue offers mesenchymal stem cells that assist in tissue repair