A healthy adult makes about 2 million blood cells every second, and 99 percent of them are oxygen-carrying red blood cells. The other one percent are platelets and the various white blood cells of the immune system. How all the different kinds of mature blood cells are derived from the same “hematopoietic” stem cells in the bone marrow has been the subject of intense research, but most studies have focused on the one percent, the immune cells.
From https://medicalxpress.com/news/2019-03-perspective-production-blood-cells-immune.html
from
https://healthnews010.wordpress.com/2019/03/22/study-gives-new-perspective-on-production-of-blood-cells-and-immune-cells/
from https://karlfletcher.blogspot.com/2019/03/study-gives-new-perspective-on.html
from
https://karlfletcher1.tumblr.com/post/183623455093
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