Read MoreThe president, who is taking a steroid to treat a drop in oxygen level, continues to improve, his doctors say.The president, who is taking a steroid to treat a drop in oxygen level, continues to improve, his doctors say.

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Read MoreThe president, who is taking a steroid to treat a drop in oxygen level, continues to improve, his doctors say.The president, who is taking a steroid to treat a drop in oxygen level, continues to improve, his doctors say.