Data suggest that 1.5 million HSCT procedures have been performed globally between 1957 and 2019, with an increasing trend toward the use of allogeneic sources. 35 The clinical prominence of HSCT continues to rise, as recent annual reports show more than 20,000 procedures in the United States and nearly 50,000 across Europe each year. 36 , 37 Importantly, transplant rates outside the United States and Europ
1
—
—