Examlex
Which of the following best describes an un-randomized study design with a single treatment followed by a single observation?
Lifestyle
The way in which a person or group lives, including patterns of social relations, consumption, entertainment, and dress.
Gerontologists
Scientists or practitioners who specialize in the study of aging and the health, well-being, and social issues affecting older adults.
Long Life
Living for an extended period, often beyond the average lifespan for a species or demographic group.
Life Expectancy
The average period that a person may expect to live.
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