1. Adams M, Luguterah A (2011) Longitudinal analysis of change in CD4+ cell counts of HIV-1 patients on antireteroviral therapy (ART) in the Builsa District hospital. Eur Sci J 9(33):299–309
2. Aitkin M, Longford N (1986) Statistical modeling in school effectiveness studies. J R Stat Soc A 149:1–43 (with discussion)
3. Anestis T (2014) R Package multgee: a generalized estimating equations solver for multinomial responses. University of Cambridge, Cambridge
4. Browne WJ (2012) MCMC estimation in MLwiN: Version 2.26 Centre for Multilevel Modelling, University of Bristol, UK
5. Egger M (2007) Outcomes of antiretroviral treatment in resource limited and industrialized countries. In: Proceedings of the 14th conference on retroviruses and opportunistic infections