1. The importance of active surveillance in the assessment of vaccine safety;Black;China CDC Wkly,2019
2. The Uppsala Monitoring Centre. WHO collaborating centre for international drug monitoring: adverse reaction terminology (WHO-ART).
3. International Conference on Harmonization. The medical dictionary for regulatory activities.
4. Sentinel Surveillance of Adverse Events of Special Interest (AESIs) After Vaccination with Covid-19 Vaccines Protocol Template o be used as a template for observational study protocols addendum to covid-19 vaccines: safety surveillance manual-module on monitoring and responding to adverse events of special interest (AESI).
5. Kohl KS, Bonhoeffer J, Miles Braun M, Chen RT, Duclos P, Heijbel H, et al. The Brighton Collaboration: Creating a Global Standard for Case Definitions (and Guidelines) for Adverse Events Following Immunization [Internet]. Available from: http://www.cochrane.org/.