In Germany, women in their 40s get a check-up every year with a specialist doctor.

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She describes a county in southern Arkansas where no doctor can afford to practise obstetrics, forcing pregnant women to travel 60 miles to get a check-up.

ECONOMIST: Lexington

If you're living in a country where you have to walk for several hours or even a day to get to a clinic it's extremely unlikely you would bother to make the return trip a week later to get the result of a check-up.

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