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:
“It is rare indeed that people give. Most people guard and keep; they suppose that it is they themselves and what they identify with themselves that they are guarding and keeping, whereas what they are actually guarding and keeping is their system of reality and what they assume themselves to be.”
—James Baldwin (1924–1987)
“Her skin was white as leprosy,
The nightmare Life-in-Death was she,
Who thicks man’s blood with cold.”
—Samuel Taylor Coleridge (1772–1834)
“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)