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Sponsored Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt Design Multi-Agent AI Systems Using MCP and A2A: Engineer your own Pyt

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Juan Qi

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Open access Oct 2026

Effectiveness of the 23-Valent Pneumococcal Polysaccharide Vaccine in Reducing Mortality Among Older Adults: A Real-World Retrospective Cohort Study in Guangzhou, China

Objectives: To evaluate the real-world effectiveness of the 23-valent pneumococcal polysaccharide vaccine (PPSV23) in reducing all-cause, pneumonia-related, and chronic obstructive pulmonary disease (COPD)-related mortality in adults aged ≥60 years. Methods: In this retrospective cohort study using existing health surv...

Yan Kang, Zhi-Wei Zheng, Juan Qi et al. · 0 citations

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