Rare Blood Types
In the "ABO" system, all blood belongs to one of four major groups: A, B, AB, or O. But there are more than two hundred minor blood groups that can complicate blood transfusions. These are known as rare blood types. Whereas common blood types are expressed in a letter or two, with maybe a plus or a minus, a smaller number of people express their blood type in an extensive series of letters in addition to their 'AB-' type designation.
Read more about this topic: Human Blood Group Systems
Famous quotes containing the words rare, blood and/or types:
“She could not love me
Were man as rare as phoenix.”
—William Shakespeare (1564–1616)
“Ties of blood are not always ties of friendship; but friendship founded on merit, on esteem, and on mutual trust, becomes more vital and more tender when strengthened by the ties of blood.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)
“He’s one of those know-it-all types that, if you flatter the wig off him, he chatter like a goony bird at mating time.”
—Michael Blankfort. Lewis Milestone. Johnson (Reginald Gardner)