A Prospective Cohort Study Protocol: Monitoring and Surveillance of Adverse Events Following Heterologous Booster Doses of Oxford AstraZeneca COVID-19 Vaccine in Previous Recipients of Two Doses of Sinopharm or Sputnik V Vaccines in Iran
BMC public health（2023）
关键词
COVID-19,Cohort study,Sinopharm vaccine,AstraZeneca vaccine,Vaccine safety surveillance
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