这个词是什么意思？
A drug combination with broad-spectrum antibacterial activity against both gram-positive and gram-negative organisms. It is effective in the treatment of many infections, including PNEUMOCYSTIS PNEUMONIA in AIDS.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D015662 · MeSH 2026。
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