Up to 19-year cryopreservation does not impair hematopoietic progenitor function in cord blood: a 1129-unit analysis from the largest Korean public cord blood bank - Eun Youn Roh; Hye Ryun Lee; Sue Shin; Jong Hyun Yoon; Nam-Hee Kim; Hyun-Woong Park; Byoung Jae Kim (Stem Cells Translational Medicine, 2026)