Affiliation: | 1. Cord Blood Bank, King Abdullah International Medical Research Center, , Riyadh, Saudi Arabia;2. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, , Riyadh, Saudi Arabia;3. Department of Pathology & Laboratory Medicine, King Abdulaziz Medical City, , Riyadh, Saudi Arabia;4. Department of Oncology/Adult Haematology, King Abdulaziz Medical City, , Riyadh, Saudi Arabia |