Evaluating UK national guidance for screening of children for TB: a prospective multi-centre study by Kampmann, B, Seddon, J, Paton, J, Nademi, Z, Keane, D, Williams, B, Williams, A, Liebeschutz, S, Riddell, A, Bernatoniene, J, Patel, S, Martinez, N, McMaster, P, Basu-Roy, R, Welch, S