LIU, Jinyi. Evaluation of the Effectiveness of Influenza Vaccination among Primary School Students in Fangshan District, BeijingEvaluation of the Effectiveness of Influenza Vaccination among Primary School Students in Fangshan District, Beijing. Science and Technology of Engineering, Chemistry and Environmental Protection, [S. l.], v. 3, n. 3, p. 8322, 2025. DOI: 10.61173/st91sp63. Disponível em: https://stecep.deanfrancis.press/article/view/909. Acesso em: 4 nov. 2026.