The physician Karl Landsteiner found out 120 years ago: Blood is not always blood! This discovery saved the lives of a great many people.
Zürich | Blood! When that flows, some people prefer to look the other way. But the physician Karl Landsteiner did the opposite. He examined blood closely and found that it can be divided into four groups. There are A, B, AB and 0 His discovery saves lives every day to this day! The four groups are: A, B, AB and 0, which means zero. This will be the AB0 system …
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