Uptake of influenza and 23-valent pneumococcal polysaccharide vaccines and associated factors among patients with chronic obstructive pulmonary disease
Han Qianqian, Hu Wenhui, Wei Lifang, et al
South China Journal of Preventive Medicine . 2026, (8): 973 -977 .  DOI: 10.12183/j.scjpm.2026.0973

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