1. Sickness absence of multivaccinated employees at Porton Down: a retrospective cohort study. Issue 7 (20th June 2007) Authors: Hugh Dyson, E; Simpson, Andrew J H; Gwyther, Robert J; Rice, Paul Journal: Occupational and environmental medicine Issue: Volume 64:Issue 7(2007) Page Start: 490 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗