1. Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City‐Riyadh Ministry of National Guard Health Affairs / College of Medicine, King Saud bin Abdulaziz University for Health Sciences / King Abdullah International Medical Research Center Riyadh Saudi Arabia
2. Histogenetics Ossining New York USA
3. Saudi Stem Cell Donor Registry King Abdullah International Medical Research Center / College of Science and Health Professions, King Saud bin Abdulaziz University for Health Sciences / King Abdulaziz Medical City‐Riyadh, Ministry of National Guard Health Affairs Riyadh Saudi Arabia