00578nas a2200193 4500000000100000008004100001100001000042700001900052700001500071700001500086700001100101700001200112700002600124700001600150700001600166700001400182700002300196245016500219 2021 d1 aX. Li1 aA. Ostropolets1 aR. Makadia1 aA. Shoaibi1 aA. Rao1 aA. Sena1 aE. Martinez-Hernandez1 aK. Verhamme1 aP. Rijnbeek1 aP.B. Ryan1 aD. Prieto-Alhambra00aCharacterising the background incidence rates of adverse events of special interest for covid-19 vaccines in eight countries: multinational network cohort study