You'll find four blood kinds: A, B, AB, or O. Also, blood is both Rh-optimistic or Rh-damaging. So In case you have sort A blood, It really is both A optimistic or even a unfavorable. Which type that you are is essential if you want a blood transfusion. And https://ledbookmark.com/story5628137/top-guidelines-of-blood-castle-mu-online