Bone Marrow Treatment

my friend was just diagnosed with leukemia and will need to go through chemotherapy until she is ready for a bone marrow transplant. But how long this treatment usually lasts?

If she comes to be conditioned immediately before transplantation, and not a course (or courses) of chemotherapy before considering transplantation, ranging from 2-10 days depending on the type of drugs used, type of cancer, and his physical condition.