An important  factor for transplants is
eye color safe operation blood type protection saves lives melanin content skin color bone structure
A B C D E F G H
Transplants are medical miracles.
Blood type is important for Transplants 
An important  factor for transplants is (A) eye color (B) safe operation (C) blood type (D) protection (E) saves lives (F) melanin content (G) skin color (H) bone structure