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Provides some support for the theory that increased stress from life events causes preterm delivery.
Estimates the cost burden associated with six major illnesses among Americans age 65 or older: chronic lung disease, ischemic heart disease, stroke, lung cancer, pneumonia, and gastrointestinal illness.
Uses a nationally representative sample of American high school seniors in 1992 to examine change and stability in the employment patterns of youth as they make the transition from high school to college.