Graham, S, McDonald, H and Parker, E (2023). Codelists for: “Identifying and quantifying confounding from health-seeking behaviour and healthcare access in observational research using UK electronic healthcare records”. [Data Collection]. London School of Hygiene & Tropical Medicine, London, United Kingdom. https://doi.org/10.17037/DATA.00003684.

Quevedo, DS, Gupte, P, Gomez, G, Gruson, H, Hartgerink, C, tracelac and Cucunubá, ZM (2023). epiverse-trace/vaccineff: vaccineff 0.0.1. [Data Collection]. Zenodo. https://doi.org/10.5281/zenodo.11449783