Metanalysis of 3 RCTs & 19 observational studies, showed hematopoietic stem cell transplantation . (HSCT) significantly improved skin thickness and lung function. While HSCT had more deaths than IV CTX, HSCT had higher 2 yr survival rate https://t.co/FMWFfmYPod https://t.co/SFjlj1yV0x