Results 131 to 140 of about 1,445 (211)

[Epidemiological characteristics of respiratory syncytial virus infection in children in Hebei Province]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Wang X   +7 more
europepmc   +1 more source

[Chinese expert consensus on the evaluation of allergen-specific immunotherapy outcomes(Wuhan, 2025)]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Deng Y   +28 more
europepmc   +1 more source

滇中高原云南松林土壤微生物群落结构及其多样性对氮沉降的响应

open access: yesShuitu Baochi Xuebao
[目的] 探究氮沉降下滇中高原云南松土壤化学性质及土壤微生物群落多样性和结构组成的变化特征,并分析土壤微生物与土壤化学性质的相关关系,为了解氮沉降下森林土壤生态系统养分循环变化趋势及观测土壤微生态变化提供科学依据。[方法] 选取滇中高原云南松林土壤为研究对象,以CO(NH2)2为N源,设置对照CK [N 0 g/(m2·a)]、低氮LN [N 10 g/(m2·a)]、中氮MN [N 20 g/(m2·a)]和高氮HN [N 25 g/(m2·a)]4个不同梯度进行模拟N沉降试验,测定分析土壤细菌 ...
宋成功   +6 more
doaj  

[Causal relationship between <i>Helicobacter pylori</i> infection and childhood immune thrombocytopenia and influencing factors for prognosis]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Zhou XY   +7 more
europepmc   +1 more source

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