As you can see from this graph, blood derivative are frequently use by cancertreatment.
The second most frequently use by "Hematopoietic organ". Hematopoietic organ make blood cells.
The third most frequently use by "Cardiology". cardiology carry blood and lymph nodes to full-body.
Forth frequently use by "Gastroenterology". Gastroenterology is related to digest the food.
In addition, blood derivative are use by musculoskeletal system,renal urethral reproductive system,delivery.