There are four blood styles: A, B, AB, or O. Also, blood is possibly Rh-beneficial or Rh-destructive. So if you have style A blood, It is really both A constructive or maybe a adverse. Which type you are is important if you want a blood transfusion. Plus your Rh https://active-bookmarks.com/story19830344/details-fiction-and-blood-castle-mu-online