Mortality and cancer morbidity in a cohort of British military veterans included in chemical warfare agent experiments at Porton Down. (9th September 2009) - Carpenter, L. M.; Venables, K. M.; Linsell, L.; Brooks, C.; Keegan, T. J.; Langdon, T.; Doyle, P.; Maconochie, N. E. S.; Fletcher, T.; Nieuwenhuijsen, M. J.; Beral, V.