“BUN”是“Blood Urea Nitrogen”的缩写，意思是“血尿素氮

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“NAION”是“Non-arteritic Anterior Ischemic Optic

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“NCHGR”是“National Center for Human Genome

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“BX”是“Biopsy”的缩写，意思是“活检”

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“NCNR”是“National Center for Nursing Research”的缩

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“c”是“with”的缩写，意思是“具有”

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“NCRP”是“National Council on Radiation Protection

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“NDMA”是“Nonprescription Drug Manufacturers

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“NEMA”是“National Electrical Manufacturers

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“NEXT”是“Nationwide Evaluation of X-ray Trends”的

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