Objective To observe the clinical effects of using the vaccinum calmette guerini polysaccharide nucleic acid to prevent and treat community children repeated respiratory track infection.

  • 目的观察卡介苗多糖核酸在预防和治疗社区儿童反复呼吸道感染的临床疗效。

  • 互联网摘选 2025-01-20 17:43:26

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