Stem cell replacement is a lot different than HCST, Brandon Baerber MD talks about it in one of this video. Watch it it describes the difference
Your explanation was good about HCST but you need to elaborate the difference between stem cell replacement and HCST
Actually, hematopoietic stem cell transplantation (HSCT) is a type of stem cell therapy. In HSCT, the goal is to reset the immune system by using chemotherapy to destroy the existing immune system, and then reintroducing stem cells to rebuild it. This is the procedure that Selma Blair underwent to treat her multiple Show Full Answer