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The temporal course of disease from onset (inception) to resolution.
Natural History Of Disease
A causal factor whose presence is required for the occurrence of the effect (of disease).
Classification into unordered qualitative categories; e.g.
A bell-shaped curve that results when a normal distribution is graphed.
The symmetrical clustering of values around a central location. The properties of a normal distribution include the following: (1) It is a continuous, symmetrical distribution; both tails extend to infinity; (2) the arithmetic mean, mode, and median are i
The upper portion of a fraction.