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If the planners of a U. S. study of children's health could work in an ideal world, it might be Denmark. Epidemiologists there finished enrolling a cohort of 100, 000 pregnant women into a mother-and-child research project last September and expect to finish collecting data from the children over the next year. The entire survey—which is large for this country of 70, 000 annual births—is to be completed in 2005 for about 15 million, a tiny fraction of what the cost would be in the United States.
Lone Frank (Thu,) studied this question.