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An individual takes a new test for a medical disease, and the results indicate that she does not have the disease. In fact, it turns out that she did have the disease. This is an example of a
Sickle Cell Anemia
A genetic blood disorder characterized by red blood cells that assume a sickle shape, leading to various complications.
Nausea
A sensation of unease and discomfort in the stomach, often preceding vomiting.
Vomiting
The forceful expulsion of the contents of one's stomach through the mouth.
Onset
The moment or starting point of a particular event or phenomenon.
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