determine its dna, we freeze this test tube at a temperature of -30 and send it to the kirov institute of hematologyithmetic scheme is simple, the more donors, the more chances the patient has to find the most suitable stem cells for him. ideal compatibility is the guarantee of a long and long life in practice, weekly transplants are taking place. but bone marrow cells, and our people occupy a rather serious share in it , it is almost 10%, so this, of course, is very important and practically a request to the blood transfusion station for our donors is going on a monthly stem collection procedure. cells are carried out in the irkutsk oncology center where they are carefully examined, including for dangerous infections. it 's herpes, it's hepatitis, it's toxoplasma. oh it toxoplasma gandhi also and porvavirus can be transplanted on site. but while i am on a quota of four patients a year, the rest of the prepared materials are sent throughout the country , all transplant centers see donors who are included in all 18 registries. so, i have a patient. i go to the russian database and see that, for examp