Etiology (alternately "aetiology") is the study of causation. In medicine it specifically refers to the causation of diseases or pathologies. The term is also used in philosophy, physics and biology in reference to the causes of various phenomena.
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... older. The average household size is 2.41 and the average family size is 2.88.
In the town the population is spread out with 20.6% under the age of 18, 5.0% from 18 to 24, ...