THE IMPACT OF TB NICE GUIDANCE ON RESOURCE CAPACITY AND CONTACT SCREENING OUTCOMES: A RETROSPECTIVE, OBSERVATIONAL STUDY WITHIN A CENTRAL LONDON TB CENTRE - O'Donoghue, M; Jarvis, H; Drey, N; Almond, MH; Seneviratne, S; Lalvani, A; Kon, OM (THORAX, 2016)