 ಮ್ಳಾರಂಯವ� Subsлично, doctor Malik Arjunとう callingiliyor I'm auscultant hematologist canonical Hematocongerologist and bone marrow transplant physician At Manipal Hospital bangolo gangs We chose The Donor for a patient based on what is called as HLA typing HLA typing only We will look at multiple HLA antigens We have HLA AAC AAC AAP AAP DQ DAR So eyeshadow antigen as I see So patient or donor  atualaisuse n tea n su match aakta ahi dhi oi lvo, nathana, we look at it. If a patient and donor are HLA identical, the HLA antigens to match or other, then it does not matter even if the blood group is not matching, so many people think for Bone marrow transplantation, the patient and the donor should be of the same blood group, the answer is no. So as long as there is HLA matching, we need not have the blood group matching. we pick a best donor largely based on the HLA matching but there are multiple other things that we look at what is a donor's age, what is his CMV status, what is his blood group, is it a male or female so we use multiple factors but most important thing is HLA typing and HLA matching and should it be a relative and healthy stem cell donor or should they have to be a blood relative only the answer is no so the best donors of course are HLA identical siblings under swanta brother or sister whose HLA identical to the patient they are the best donors so if we have HLA identical siblings we choose them as our donors but many times either patients have no siblings or their siblings are not HLA identical to the patient so antha samadali we look at what is called as unrelated donors so when we submit the patient's HLA test we submit it into both national and international donor registries we have many donor registries in India we have a german donor registry we have an american donor registry wherein millions of healthy donors have enrolled and their HLA report is available with the donor registries so now when we submit the patient's HLA those registries will try to match and if there is an unrelated donor whose HLA is matching with the patient we take stem cells from such unrelated donors so those transplants we call them matched unrelated donor transplants