1. Effectiveness of First Dose of COVID-19 Vaccines against Hospital Admissions in Scotland: National Prospective Cohort Study of 5.4 Million People;Vasileiou,2021
2. Early effectiveness of COVID-19 vaccination with BNT162b2 mRNA vaccine and ChAdOx1 adenovirus vector vaccine on symptomatic disease, hospitalisations and mortality in older adults in England;Bernal;MedRxiv,2021
3. BNT162b2 mRNA covid-19 vaccine in a nationwide mass vaccination setting;Dagan;N. Engl. J. Med.,2021
4. Under-reporting of adverse drug reactions;Hazell;Drug Saf.,2006
5. Causes for the underreporting of adverse drug events by health professionals: a systematic review;Varallo;Rev. Esc. Enferm. USP,2014