A quantitative study of China′s policy texts of vaccine clinical trials based on "tool–element–strength" three-dimensional analytical framework

ObjectiveTo analyze the policy texts of vaccine clinical trials in China and identify the characteristics, issues, and directions for improvement in the quality management. MethodsSeventeen policy documents issued at the central level between January 2001 and December 2024 were obtained through a sy...

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Auteurs principaux:	Xiao LI, Handa GE, Juan XIAO, Beifang YANG, Shunping LI, Zehao ZHENG, Jie FENG, Da FENG
Format:	Artigo
Langue:	Chinês
Publié:	Editorial Office of Chinese Journal of Public Health 2025-11-01
Collection:	Zhongguo gonggong weisheng
Sujets:	vaccine clinical trials policy tools policy elements policy strength latent dirichlet allocation (lda)
Accès en ligne:	https://www.zgggws.com/article/doi/10.11847/zgggws1147132
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