Mulholland, R., Vasileiou, E., Simpson, C., Robertson, C., Ritchie, L., Agrawal, U., Woolhouse, M., Murray, J., Stagg, H., Docherty, A., McCowan, C., Wood, R., Stock, S. & Sheikh, A. 2021, 'Cohort profile: Early pandemic evaluation and enhanced surveillance of COVID-19 (EAVE II) database', International Journal of Epidemiology, article no: dyab028. https://doi.org/10.1093/ije/dyab028