Title Item Type No Grouping Quilty, BJ; Hellewell, J; Clifford, S and CMMID COVID-19 working group (2021). R code for: "Confirmatory testing with a second lateral flow test may mitigate false positives at low levels of SARS-CoV-2 prevalence in English schools". [Dataset]. London School of Hygiene & Tropical Medicine, London, United Kingdom. 10.17037/DATA.00002074.