1. Underascertainment of COVID-19 cases among first responders: a seroepidemiological study. (9th December 2021) Authors: Backhaus, I; Hermsen, D; Timm, J; Boege, F; Lübke, N; Göbels, K; von der Lieth, D; Dragano, N Journal: Occupational medicine Issue: Volume 72:Part 3(2022) Page Start: 225 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗