Ehsan Shahverdi1, Mostafa Moghaddam2, Ali Talebian3, Hassan Abolghasemi4. 1. Baqiyatallah University of Medical Sciences, Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran. 2. Head of Immunohematology Reference Laboratory, Iranian Blood Transfusion Organization, Blood Transfusion Research Center, High Institute for Research Center and Education in Transfusion Medicine. 3. Iranian Blood Transfusion Organization, Blood Transfusion Research Center, High Institute for Research Center and Education in Transfusion Medicine, Tehran, Iran. 4. Iranian Blood Transfusion Organization, current Head of Pediatric Hematology and Oncology Department, Baqiyatallah University of Medical Sciences, Tehran, Iran.