How To Use W.h.o. In A Sentence

• The success of a large free bed net campaign in Kenya led the W.H.O. to announce this recommendation last August.
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• The W.H.O. safety standard for ozone levels is somewhere about a hundred.
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• The W.H.O. safety standard for ozone levels is somewhere about a hundred.
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• The W.H.O. safety standard for ozone levels is somewhere about a hundred.
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• The W.H.O. safety standard for ozone levels is somewhere about a hundred.
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