And when she was gone, my grandmother stepped up to take care of me.

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Effective treatment requires professional care followed by stepped up oral hygiene at home.

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So the government stepped in to support child care.

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When the financial crisis left banks insolvent, the Treasury stepped in with the TARP program to take care of the immediate capital shortfall.

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It said the mayor had "stepped in after concerns were expressed about the quality of care for vulnerable children".

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