Superiority and non-inferiority: Two sides of the same coin? by Dunn, D, Copas, A, Brocklehurst, P

Optimal CD4 count for initiating HIV treatment: impact of CD4 observation frequency and grace periods, and performance of dynamic marginal structural models. by Ewings, F, Ford, D, Walker, A, Carpenter, J, Copas, A

Poor sensitivity and consistency of microscopy in the diagnosis of low grade non-gonococcal urethritis. by Smith, R, Copas, A, Prince, M, George, B, Walker, A, Sadiq, S

Genotypic variation in Pneumocystis jirovecii isolates in Britain. by Miller, R, Lindley, A, Copas, A, Ambrose, H, Davies, R, Wakefield, A

Handling an uncertain control group event risk in non-inferiority trials: non-inferiority frontiers and the power-stabilising transformation by Quartagno, M, Walker, AS, Babiker, AG, Turner, RM, Parmar, MKB, Copas, A, White, IR

Predictors of CD4 cell recovery following initiation of antiretroviral therapy among HIV-1 positive patients with well-estimated dates of seroconversion by Stirrup, O, Copas, A, Phillips, A, Gill, M, Geskus, R, Touloumi, G, Young, J, Bucher, H, Babiker, A

A randomised controlled trial of computer-assisted interviewing in sexual health clinics. by Richens, J, Copas, A, Sadiq, S, Kingori, P, McCarthy, O, Jones, V, Hay, P, Miles, K, Gilson, R, Imrie, J, Pakianathan, M

Assessing the impact of online postal self-sampling for sexually transmitted infections on health inequalities, access to care and clinical outcomes in the UK: protocol for ASSIST,... by Gibbs, J, Howarth, AR, Sheringham, J, Jackson, LJ, Wong, GR, Copas, A, Crundwell, DJ, Mercer, CH, Mohammed, H, Ross, J, Sullivan, AK, Murray, E, Burns, FM